"Not all change is improvement...but all improvement is change" Donald Berwick
"They beat the 7.8km (4.8-mile) world record for the longest cave dive penetration, set last year at Wakulla Springs in Florida."
that's an accomplishment.
Joe
Originally Posted by Richard Pyle
I wish there was more information like depth and water temperature.
"Not all change is improvement...but all improvement is change" Donald Berwick
"Have you ever noticed
When you're feeling really good
There's always a pigeon
That'll come shiat on your hood?" John Prine 4-7-2020
"Into the blue again; in the silent water
Under the rocks, and stones; there is water underground" Talking Heads
From the CDG website - my comments in italics:
Pozo Azul 2010
Following a week of set up work, 4 divers (Rene Houben, Jason Mallinson, John Volanthen, Rick Stanton)set off on Saturday morning and passed the 5160m long S2, arriving in Tipperary (the name of the air chamber between Sump 2 and Sump 3 - so called from the WW1 song "it is a long way to Tipperary")after a 5.5 hour dive.
Approximately 2 hours after surfacing Rene Houben made a foray into S3 to determine if there was a useable airspace not too far ahead. 2 hours later he returned after laying all his 1000m of his diveline!, the sump continued.
A camp was established in Tipperary, and following a nights sleep, further exploration was carried out into S3 by the other 3 divers. (There was a question how long divers could remain in the enclosed air chamber due to CO2 build-up)
In total, 3650m of line was laid in S3, and a total penetration distance in S3 of 2800m was made, on a dive lasting 5 hours. The remaining line was laid into a significant side passage.
The furthest point reached in S3, involves a total diving distance of 8825m from the entrance and the cave is now over 9km long.
The whole of S2 and a large part of S3 was surveyed using an electronic survey device developed by J.Volanthen. (This is in essence a cannister containing a pressure guage, compass and impellor to measure transit distance connected to a data logger - the dive line would also have been marked for distance)
Following a further night in Tipperary, all 4 divers exited S2 on Monday morning and emerged from the cave late afternoon.
The above exploration was carried out and supported by cave divers from Spain,Holland and Great Britain. But not including moi :-(
In other news:
http://www.irishtimes.com/newspaper/...278569802.html
Not taking anything away from the team, IMHO a great accomplishment, but is the dive looked at by the powers that be as somewhat different? I believe that Wakulla was done constantly underwater on scuba and the other had a break in an air chamber. Are there different standards like they have in free diving. Again, I am always still learning and just trying to see how the two dives can be compared.
"...some night, in the chill darkness, someone will make a mistake: The sea will show him no mercy." John T. Cunningham
This list (though slightly out of date) has the information you require: http://www.plongeesout.com/siphonome...ong_siphon.pdf
The Wakulla dive is the longest penetration on a single dive - the Pol Azul dives represent the longest cumulative diving distance covered on a single penetration - similarly Cocklebiddy in Australia has several long sumps separated by modest air chambers and the total distance is well over 3500 m.
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