Tuesday, January 25, 2011

Winter diving in Norway

After Tuna Hästberg I haven't been diving much, well not at all in fact. I had a leaky dry suit which it took me forever to get fixed. I got back in the water second week of January. I could really feel the extra kilos from eating to much over Christmas. It was difficult to get in and out of the gear. So I decided to upgrade my equipment a bit for added comfort. Not to mention that the water currently is three degrees Celsius.

I bought the following
  • Halcyon Cinch
  • d8.5l
  • Santi 10mm double layer hood
  • Fourth Element Xerotherm writst warmer
The d8.5 was very nice. It weight between 8 and 10kg less than the d12 when it's empty. What dissapoined we was that the bolts was way to short. No way I could get the tail weight, wing and back plate on at the same time. Good thing the d12 was in the car, so I could borrow the bolts from it.
Having assembled the gear, it was very easy to get it on. The Cinch system allowed me to have very wide straps. Once it was on it was easy to tighten it and make it comfortable. Not to mention how much lighter it felt with the d8.5.

The Santi hood was a pain in the ass. Well it was really difficult to get the mask on, as the opening around the face was so tight. Took me and my buddy probably four minutes of cursing to get the dam thing on. However, once it was on it was warm and cozy. Before next dive I have to cut a bigger opening for the face, so that I can fit the mask on easier. Now I have no chance of replacing the mask if it is kicked of underwater.

Finally the wrist warmer. I hate it. It gave me great pain in my hand, and constricted blood flow. Yes it was warm, but very annoying to wear.

Sunday, October 17, 2010

Cave diving in Tuna-Hästberg

Mine entrance
Preparations
Ever since I saw an article in Dykking about diving in the old mines of Tuna-Hästberg, I have wanted to try it. This was even before I did my cave training. However, from the grapevines I got the sense that it wasn't open for everyone. You had to know someone, or at least get a introduction.

Unable to find any solid information about diving there other than what little is on this page: http://www.baggbodykarna.org/, I decided to forgo the introduction or find someone that knew someone who could help. I contacted a guy, whom I had seen posting about the Baggbodykarna calendar in a Norwegian forum.

Shaft leading down into the mine.
To my great relief and joy I was told that it was quite possible to dive in the mine, as long as you had the proper training. All I needed to do was to write a short introduction about my self and send it to the right persons. Then I would get more information and hopefully an invitation to come dive with them.

A few days later, an invitation to come dive first weekend in October arrived by e-mail. I could have jumped from my chair shouting "Yes, yes!!" but I guess that would have been inappropriate behavior in the landscape/office. A few days later the GUE Cave 1 plastic card arrived, I took it as a good omen for the upcoming mine adventures.

Tunnel to the diving area
Weeks in advance of our trip we received an information packet from Baggbodykarna, enclosing driving directions, rules, equipment list and a short history of the mines. It all seemed very nicely organized. Most of the things in the information packet was as expected. Use helmet at all times, carry spare lights, you are responsible for your own safety and so forth.

However, there were also a few unexpected things. One was that there is no toilet facility in the mine, so you literally have to carry all the shit you bring in back out again. I wonder what the miners did back in the days. They must have had a toilet of some kind.

A second unexpected thing was that you are not allowed to take any photos in the mine. With written permission you may photo the dry parts of the cave. It turned out that all you needed to do was to ask nicely and they let you take photos in the dry part for private use. Baggbodykarna kindly provided two UW photos that I could use for this blog. You'll find that eye-candy a bit further down in the post.

The trip
Norwegian divers in Tuna-Hästberg
On the day of the trip nearly everything went wrong. Items were forgotten, password misspelled, gas stations without disel. It's a wonder that we arrived in Tuna-Hästberge at all. Going to Tuna we took the E18 towards Stockholm out of Oslo and eventually crossed in to Sweden near Töcksfors, passing famous places like Filipstad and Ludvika before arriving.

However, when we arrived at the mine we discovered that the sleeping accommodation were not readily visible. We tried contacting a few people, to no avail, as it was way past midnight. There was nothing for it, but to pull out the sleeping backs, roll back the seats and sleep in the car.

Diving
Foto: Baggbodykarna
Next morning around 08:30 the rest of the divers arrived. We got all the gear into a wagon that were to transport it down in to the mine. It didn't matter if the equipment was already assembled or put into seperate boxes. Everything went into the wagon and down towards the diving site in a slow pace.

Divers did not get the luxury of descending by cart down into the mining shaft. There is a long staircase going down at a 45 degree angle, no railing, no light in the end of this tunnel either. The gear was put on backpack wheels and pushed into a side passage. The passage had a low roof with outcroppings every odd meter. This was the main reason for the helmets. The passage had a small gang way built up so that it was easy to push the gear along.

The passage ended in a doorway clearly marked diving area. The small gangway expanded and became a wall to wall wooden floor. Pushing the gear up and into the diving area, it soon became apparent that this was no simple base camp for diving. The diving area is a spacious hall, with wooden floor, lined with wide benches for assembling gear. It was lit from above with a bountiful light. I had expected that we had to assemble our gear by the light of our helmet lamps. Instead I entered a diving "center" better organized and lit than most commercial diving centers.

Foto: Baggbodykarna
After assembling the gear, it was lifted down to the water surface by an electric winch. I was very appreciative of the fact that I did not have to clime the 3-4m ladder with 60 kg worth of gear on my back, but I immediately saw a congestion point when all the divers had to get their equipment winched up for refilling. Well, the world ain't perfect.

Later that day I learned that it was my comprehension of the system and not the system itself that was less then perfect. The Swedes had a long hose extending from their compressor on the other side of the diving area going all the way down to the diving platform. So there was no congestion point in moving equipment up and down. They could even fill a whole bunch of bottles at the same time.

Nicolay aka Buddy
Before you get to dive alone in the mine you had to take a short dive with one of the Bagbodykkarna (which by the way is just a funny name they came up with with no meaning what so ever, except for the dykkarna part I guess). Our first dive was delayed due to no less than two primary light failures in the surface. One was a permanent failure, the other one was just a discharged battery. Luckily someone had brought two primary light, so the weekend was not ruined, just a delayed start.

The diving was awesome. There was a lot of corridors in this system, and lines going every which way. Even at sports level, you can do a decent number of dives before you have seen all the line there is to see within your depth limits. Some of the highlights for me was not seeing the Østra-Vestra sign even though a friendly Swede pointed it out with his light, seeing the electrical room with still intact fuses and switches, passing down a small passage with a ladder and out through a still intact doorway and out to behold the mother of all complex T crosses.

Accommodation

Diving platform.
From the information I had received, which I think is about a decade outdated, I figured that the school we were going to sleep in was a howl. I imagined it with a unhinged door, only half of the windows intact and dirt of 30 year of disuse on the floors. Again I had gotten it all wrong. The school was fairly modern, clean, with all doors and windows intact. It even had heating, electrical power, a functional kitchen, toilets and showers. During the winter months they sleep in the mine... which is a bit less comfy.

Summary
Diving in Tuna-Hästberg is great fun. It is well organized and they offer air, nitrox and argon for a modest price. The accommodations are modern and well functional, well above an average hostel standard. There is diving in the mine the first weekend of every month, and it is possible to book the mine for diving if you are a group of eight or more divers.

Prices:
  • Nitrox, 100 sek 
  • Argon, 100 sek
  • Acomodation for a weekend, 100 sek
  • Diving priveleges for a day, 350 sek

Sunday, August 22, 2010

HDR

This is not going to be diving post, but it is going to be about something I'm looking forward to try out while diving. I'm talking about HDR (High Dynamic Range) photo. There are tons of stuff on the net explaining it in great details. Suffice to say that you take 3 or more identical shots, only changing the exposure. Usually one shot will be correctly exposed, one will be under exposed and the last will be over exposed. Advanced cameras has a function called bracketing for this purpose. Turn it on and just hold the release button in and the camera will take three consecutive images with different exposure.
Afterwards you merge the three photos to taking the best of each. Lets just look at one I did.

This first image has been correctly exposed. It's not looking all bad, but it leaves something to desire. THis was a beautiful sunset, which the photo totally fail to recreate. The sky as well as the river are just plain boring, also one could want some more details in the darker areas.


This image has been under exposed, and now the sunset appare! However, the houses and plants on the riverbank are just black siluets. 



And finally the overexposed one. Now the details in on the banks are perfectly clear, but the sky and the river is blown out, and the image might as well been taken at noon.


So lets se what HDR can do for us. Keep in mind that I started looking into HDR about 3 hours ago. This time includes reading a couple of pages in a book about it, finding and buying the software, realizing that the images I took earlier in the day all had flares that ruined them, so I had to run out to catch the sunset and retake the images. Then coming back home, editing the images and writing this blog post. So there might be a lot more I could have done with the images, that I will learn in the future.


Some of you will have seen my other photos, and already know that there is a lot you can do with Light Room 3 and raw files. So lets just have a look at my best effort with "only" Light Room (without spending a lot of time on it.

Personally I like the HDR image way better, I think I'm going to be a great fan of HDR. Looking forward to the cenotes in mexico with the light comming into the cavern zone. With HDR I think I can get a good representation of the light and the dark areas. Can't wait.

Just a short end note, who said that the image you produce has to look anything like real life. I just played around with the HDR software to get a more wacky end product on this one. Ended up looking a lot more like the LR version. With no details in the shadow, but really great colors in the sunset.


More HDR images by me can be found in this album.

Tuesday, June 15, 2010

Diving in Dubrovnik

Planning
Going to celebrate my mother-in-law's 60tieth birthday in Dubrovnik, Croatia, I saw an opportunity to do some nice diving at the same time. I contacted a GUE center elsewhere in Croatia and asked if they knew of a GUE friendly diving center in Dubrovnik. They said Dubrovnik-Diving was such a center. I contacted them, checked the prices, and confirmed that they had D12 for hire. Everything looked good.

All that remained was to pack the gear, and escape the family get-together long enough to blow some bubbles. At least that was the plan.

Saturday
Arrived in warm Dubrovnik and had a nice day at the beach. Took the opportunity to confirm that I had an arrangement with the diving center and that they would pick me up the next day. Didn't get a reply. Enjoyed a slow day on the beach, the water is about 22 degrees, visibility is pretty good. Really looking forward to the diving part.

Sunday
Still no reply by e-mail, when I finally reached them on the phone they have filled the boat up with snorkelers... so no diving on Sunday. That left me some time to be a tourist and see the old town of Dubrovnik and visit the beach again.

Monday
All diving is canceled because of problems with the steering wheel on the boat. Well it was back to the beach again. The closest I came to diving was some free-diving on the beach. But the beach is just a endless stretch of sand bottom, so not much to see while free-diving.

Tuesday
Still no diving, but they assured me that they will start up diving again on Wednesday. Another day on the beach. Did I mention that I'm not a huge fan of beaches?

Wednesday
The first day of diving. The dive center picked me up outside my hotel, with just some delay due to traffic. When I arrived at the dive center I was told that there would be a English couple and a bunch of cruise guests going on today's trip. Actually they told me about the cruise guest / snorkelers the day before. At that moment I didn't care, I just wanted to get in the water. It turned out that the English couple had been diving with the center all week. I'm still wondering why exactly they canceled my diving the previous days, but took the English couple out anyway.

The boat was spacious with a large area for divers to prepare. And a equally large dry area where people could sit and rest. In addition there was a large sundeck. Actually this is a boat where it is possible to bring your entire family. To my surprise they served lunch between dive one and two. It was a nice "homemade" lunch. Nothing fancy, but it was tasty. I had no idea what the lunch was going to cost me at that time, but when I picked up the bill later it was only 70 kuna (=70 NOK).

The dive sites were not awesome, but they were nice. The woman from the English couple was really good at spotting interesting thing in the sea. So she was able to find a lot of nice things to see.

When the day was over I had done 3 dives. Taken a bunch of images, none of which were very good. The dive center took me back to my hotel when we were done and it was time to enjoy some Croatian food.

Thursday
Again I was picked up by the dive center. This time it was only the English couple and me going diving. Which meant we had the entire boat to our selves. We had two nice dives. This time I had brought my macro lens, and some of the images turned out presentable. I got to see a couple of moray eels and two squids (or were they octopus, who knows?).

I got two nice dives this day. One of which was rewarding in a photographic sense.

I payed 70 kuna for the transport back and forth to the hotel. 218 for each of the dive, and 70 for each of the lunches. A very reasonable price, I think.

Summary
Dubrovnik is a nice place to dive, but I would not have traveled here again just for diving. It would have to be in combination with something else. The reason for this is that, based on what I saw, there was not much variation in the sea-scape. However, Dubrovnik has a nice old town, with a lot of museums. There are some nice beaches, the water is warm so there is plenty of other stuff for your family to do if you need to distract them while you go diving.

Monday, April 5, 2010

Cave 1 - noen oppdateringer

Tror jeg glemte å si i original posten min at Cave 1 hos Zero Gravity med Fred Devos var helt synssvakt bra, og at jeg uten å nøle kan anbefale dette kurset til andre. Ja GUE kurs er dyre, ja du får masse begrensninger, men det er verd det.

Har plukket ut de 10 beste bildene fra turen og lagt dem here.

Noen tips jeg glemte å nevne:
Det relativt stillestående vannet i cenotene gjør det utvikler seg bakterier der. Disse bakteriene kan gi deg øre infeksjon. Du forhindrer øreinfeksjon ved å vaske ut av ørene etter dykket. Vanlig rent flaske vann hjelper, men enda bedre er hvis du kjøper en spesiell blanding av alkohol, eddik osv... ment til dette. Et annet tips kan være å få skylt ørene ordentlig hos en lege før du reiser. Da ørevoks holder på fuktigheten og gir bakteriene bedre gro forhold. Hvis uhellet er ute dvs øre føles ømt og du har litt smerter inne i øret så drar du på et lokalt appotek og be om "gotas para infeccion de oreja". Soladrin er et bra merke. Dette er øre dråper du har i høret og helst lar være der en stund. Hvis det heller ikke virker da er det på tide og kontakte lege. Jeg brukte disse. Legen jeg fikk snakke med pratet bra engelsk.

Thursday, March 11, 2010

Cave 1

Introduksjon
Da jeg tok DIR Fundamentals ble det raskt klart at jeg ønsket å ta Cave 1. Det som overbeviste meg var de mange fantastiske bildene folk har tatt av grotter. Nå ni måner senere har jeg gjennomført Cave 1, og tenkte å dele litt erfaringer. Helt til slutt kommer litt om priser/budget, noe jeg selv syns var vanskelig å få avklart før jeg dro.

Hvor
Det er mange steder i verden man kan dykke i grotter. De to største grotte eldoradoene er (så vidt meg bekjent) Yucatan i Mexico og Florida i USA. De to stedene er ganske forskjellige. I Mexico er grottene relativt grunne 6-20m stort sett. I Florida er de noe dypere. I tillegg er det mye sterkere vann gjennomstrømning i Florida.

Jeg ble anbefalt å ta Cave 1 i Mexico og heller evt ta Cave 2 i Florida. Med den begrunnelse at man selv med de strenge gass begrensingene på Cave 1 får ganske lange dykk på grunnen av at grottene er grunne og med minimal vanngjennomstrømning.

Valget falt på Mexico og Zero Gravity. Instruktørene kom høyt anbefalt, og området rundt Zero Gravity har veldig mange grotter med beskjeden dybde, noe som er flott for å ta Cave 1. Gjennom Zero Gravity booket vi en shuttle som plukket oss opp på flyplassen og kjørte oss rett til leiligheten som vi forøvrig også hadde booket via kursstedet. Det var veldig behagelig å slippe å forholde seg til masse forskjellige folk å bare kunne booke alt gjennom et sted. Leiligheten lå i Puerto Aventuras. Et ganske kjedelig tettsted. Men vi hadde lite tid til å utforske det, så det spilte ikke noen stor rolle. Leiligheten holdt høy standard.

Kurset
Cave 1, og de fleste andre kurs fra Zero Gravity går mandag til fredag. Vi ble hentet utenfor leiligheten 07:30 hver dag og kjørt til kurssenteret. Morgenen ble enten brukt til klasseroms undervisning eller øvelser på dykkestedet. Litt ut på dagen rigget vi utstyret og krøp inn i tørrdraktene. Når vi først kom oss i vannet, ble vi der i mange timer. Gjerne til etter at cenoten hadde stengt. Vår instruktør tillot tissepause mellom dykkene, men mange andre gjør det ikke. Så her gjelder det å ha p-valve. Lunsjen ble spist mens vi byttet flasker.
Etter at dykkingen var avsluttet kom vi oss fra dykkestedet så raskt som mulig, siden de allerede var stengt. Bare instruktørens gode forhold til eierne gjorde at vi fikk være til etter stengetid. Vi dro så tilbake til kurssenteret og hadde litt mer klasseromsundervisning.

Vi var tilbake ved leiligheten rundt mellom åtte og ni på kvelden. Så det ble lange og intense dager.

Før dykkingen hver dag gikk instruktøren gjennom mulige feil som kan skje når man driver med grottedykking og prosedyren for å håndtere det. I løpet av dykket ble disse feilene simulert. Slik at vi skulle få trene på å håndtere dem. Instruktøren kunne skru av en hovedlykt for å simulere at den hadde gått i stykker, slik at studenten måtte ta ut backup lykten. Eller instruktøren brukte en air-gun for å lage bobler for å simulere lekkasjer.

Det var aldri et dykk uten at noe gikk galt. Noen ganger var det helt og holdent startet av instruktøren. Andre ganger var det ting vi hadde gjort feil som startet problemene. Hvis man lot noe av utstyret henge løst, eller på feil sted. Så kunne man banne på at instruktøren enten hadde tatt det (for å simulere at du hadde mistet det), eller snurret det rundt noe slik at du satt deg fast. I det hele tatt en veldig effektiv måte å lære på. Du fikk alltid instant feedback på feilen dine med å se en av de verste mulige konsekvensene av den.

I løpet av et dykk kunne vi ha ganske mange feil samtidig. Alle hoved lyktene kunne gå, noen av backuplyktene, kanskje noen måtte dele gass, også plutselig forsvant sikten (simulert ved å slå av alle lys). I det hele tatt så sitter man igjen med følelsen at det er ganske mye som skal gå galt i grotten før man blir "thrown of ones game" som man sier på nynorsk.

Utstyr
For å kunne ta kurset må man ha en komplett DIR equipment. I tillegg trenger man våt eller tørrdrakt. Det siste er å foretrekke. Under tørrdrakten brukte jeg langt undertøy som er litt tykkere en det man normalt bruker på ski. Utrolig nok ble det fortsatt litt kaldt i det 25 grader varme vannet. Spesielt når man lå stille på etter et dykk og hadde debriefing. I grottene er det både salt og fersk vann. Salt vanne ligger dypere og er to grader varmere, det var ganske spesielt å bevege seg mellom dem og kjenne hvor stor forskjell bare to grader hadde på følelsen av varme/kulde.

P-Valve er en annen stor fordel, så man slipper å gå ut av vannet for tømme blæren. Når man er i vannet i 3+ timer blir dette veldig viktig. Vår instruktør slapp eleven ut av vannet for å gå på do, men han snakket også om at andre instruktører ikke gjorde det.

At man bare har et sett langt undertøy og ingen hansker gjør det vesentlig lettere å betjene utstyret, noe som var veldig behagelig. Kommer ikke til å blir så digg å gå tilbake til store tykke tørrhansker.

Etterkurset
Kort fortalt valgte vi å flytte inn til Tulum. Hvor det er litt billigere og bo, og langt større utvalg i resturanter. Noen cenoter ligger nært Tulum, andre nært Puerto Aventuras. I verste fall får du 40km ekstra å kjøre for å komme til den cenoten du ønsker.

Budget
Før kurset synes jeg det var vanskelig å finne ut hvor mye det ville koste for de forskjellige tingene. Så jeg skal skrive opp noen av mine erfaringer.

Flybiletten koster ca syv tusen kroner fra Oslo via New York til Cancun. Det kommer i november charterfly direkte til Cancun, så kanskje det endrer prisbildet. I tillegg til flybilletten må man på beregne å betale gebyr for ekstra bagasje. Vet ikke helt hva dette koster da vi hadde bestilt tidlig nok til å ha 2x 23kg.
Reisen fra flyplassen til Puerto Aventuras kan gjøres på flere måter. Man kan enten ta en shuttlebuss organisert av Zero Gravity til 85USD, eller man kan ta taxi til ca 225nok (per pers?) eller man kan leie bil for ca 50-80USD per dag. Trenger man bil? Etter kurset definitivt. Under kurset? Vi bodde i Puerto Aventuras og der ble vi plukket opp av instruktøren som også kjørte oss hjem på kvelden, så vi trengte det ikke. Hvis man velger å bo lenger unna trenger man kanskje bil.

Siden kurset varer hele dagen er det en fordel å bo så nært som mulig. Da er Puerto Aventuras stedet. Zero Gravit ordner leilighet til deg for 85USD per natt. Denne prisen gjelder for hele leiligheten. Så det blir ganske billig hvis man er to par, og litt dyrere per pers hvis man som oss vil ha vær sin seng og dermed bare er to i leiligheten. Leiligheten har et lite kjøkken, vaskemaskin og tørketrommel (som jeg ikke fikk til å virke). Etter kurset flyttet vi til Tulum og bodde på Residence La Mariaposa for 70USD per natt for leiligheten. Igjen en stor leilighet med to store dobbeltsenger og kjøkken.

Til kurset må man ha med seg lunsj, det blir ikke noe lange lunsj pauser. Så man må ha noe som er lett og spise og lett og lage. Vi gikk for brød, ost og skinke. Dette ble for oss frokost og lunsj. Litt ensformig men veldig effektivt siden de fleste bensinstasjoner selger alle tre tingene. Dette koster heller ikke noe spesielt. kanskje 30kr per pers per dag.

På kvelden ønsket vi å spise ute. Da varierte prisene fra 50kr per pers til 200 per pers. Nesten alle steder kan man få en hovedrett til under 50 kroner. Typisk taco eller fajitas (som med mine norske øyne ser ut til å være 100% likt, men med Mexikanske øyne er to helt forskjellige ting). Så det er mulig å leve veldig billig hvis man ønsker det. For de som skal bo i Puerto Aventuras anbefaler jeg Nativo. Enkel, god og billig mat. Serverer ikke alkohol, men noen fantastiske frukt juicer.

Under kurset er flaske leie inkludert i prisen. Etter kurset må du fikse dette selv et sted. Da ligger prisen på 20USD for et dobbelt sett med 32% nitrox hvis man leier fra Zero Gravity eller 25USD hvis man leier fra Xibalba i Tulum. Hvor du leier avhenger vel mest av hvor du bor og hvor du skal dykke. Vi brukte normalt to doble sett hver dag. Da fikk vi 4 dykk per dag.


Bilder

Monday, February 22, 2010

Video reflektor

Hovedlyktene man bruker i en DIR outfit har en konsentrert kraftig stråle. Denne er veldig fin når man skal kommunisere med andre dykkere under vann, da den er synlig selv på høylys dag. Den er dog ganske lite egnet til å bruke som lys til filming/foto. Derfor har jeg gått til innkjøp av to video reflektorer som jeg kan montere på min og min buddys lykt. En kald kald kveld var vi ute og testet. Tok litt film med mitt Canon Powershot G9, all den tid huset til det nye 7D ikke har ankommet.

I de to første klippene i filmen har jeg video reflector og buddy har det ikke. Mitt lys er montert veldig nært kameraet på venstre side og man kan se at lyset nesten blir litt utbrendt der. I de to siste klippene har jeg flyttet lyset mitt ut på blitz armen (ingen triviell ting å gjøre på 30m med tørhansker) og buddy har montert på video reflektor også. Selv om sikten på Svestad var elendig denne dagen synes jeg filmen gir et godt inntrykk av hvor mye lys man kan få ut av to canister lykter med video reflektor. Dette lover bra for turen til Mexico hvor vi satser på å ha klarere vann og bedre kamera.

Test filmen finnes her. http://gallery.me.com/marius.froisland/100288