+ Reply to Thread
Page 1 of 2 1 2 LastLast
Results 1 to 10 of 12

Thread: Sintzi Cave, Greece, report of a -153 dive

  1. #1
    RBW Member gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas is a glorious beacon of light gtzavelas's Avatar
    Join Date
    Jan 2006
    Location
    Athens,Greece
    Posts
    506
    Megalodon

    RB80 Clone, CastoroC96, RGU

    Sintzi Cave, Greece, report of a -153 dive

    After several months of preparation another expedition was successfully completed at the Sintzi spring in the County of Arcadia, Peloponnisos, on Saturday July 4, 2009. The spring is located in the central area of Peloponissos at an altitude of 650 meters and has been explored by the SPELEO caving club since 1996.
    With the completion of the last expedition the explored depth is now 153 meters, which ranks the spring as the deepest known underwater natural cavity in Greece.
    In detail, the last dive reached a maximum depth of 153,5 meters and lasted 5 hours and 32 minutes.

    One of the major tasks of the preparation phase over several months, was the design, construction and installation of a modular, inflatable habitat at 500 meters from the entrance of the spring. The utilization of a habitat was deemed necessary in order to increase the safety and the confront of the divers that have to undertake long decompression at 10 degrees C water.
    The decision to use a habitat for decompression brought additional complications due to the difficult nature of the cave. As the outer part of the cave is very shallow the bulk of the decompression time was spent at a point 500 meters from the entrance of the cave. So the habitat was required to be placed far from the entrance. In addition the narrow entrance made the use of standard rigid habitats (frequently used in cavediving expeditions) impossible. These limitations forced the team to design and build a modular, foldable and inflatable 2 person habitat that could be squeezed through the narrow part of the cave and towed, using scooters, 500 meters in the cave.

    Furthermore a special pulley system and speleo techniques were utilized so that the depth of the habitat could be adjusted between 9 and 12 meters in order to facilitate decompression.
    During the whole procedure, apart from the plethora of standard cavediving equipment, eCCR and pSCR rebreathers and scooters were used. It must be noted that the 153,5 meter dive at an altitude of 650 meters (location of the spring) corresponds to a 162 meter dive at an altitude of 0 meters (sea level) as far as the decompression requirements are concerned.

    Apart from the above succesfful exploration of this huge, as it is turned out, underwater cave system, a full map of the cave was produced, and a plethora of photographs and videos were taken including video recording of the newly explored section down to the depth of 153 meters.

    The deep dive was done on a eCCR rebreather using 7/80 diluent plus 6 bailout tanks enough to reach the habitat at 12 meters. The diver entered the habitat and breathed 80/10 and then after the 12m stop was competed the habitat was raised to 9 meters where the remaining deco was completed on 100% oxygen (using air breaks every 15 minutes) . After taking a last air break the diver then exited the habitat , replaced the rebreather and exited the cave at a low setpoint to avoid possible OxTox issues. (max CNS was more than 255%).

    The dive profile: V-Planner Live dive database



    The successful outcome of this expedition would not have been made possible without the excellent cooperation coordination of a team consisting of eight cavedivers from caving clubs belong to Hellenic Federation of Speleology ( - Hellenic Federation of Speleology).
    The fellow cavedivers, worked harmonically, passionately and collectively and managed to raise Greek cavediving to levels comparable to those of countries renowned in the cavediving area. Sintzi spring is now listed among the 30 deepest explored underwater natural cavities in the world.

    We believe that the harmonious cooperation of teams consisting of members from several caving clubs is the only way for Greek caving to undertake demanding explorations of large subterranean systems. This has been demonstrated by the latest experience of the impressive advances made to the work of SP.EL.E.O caving club at the Sintzi spring.

    We hope that every Greek caving and cavediving expedition has a similar outcome.

    Finally, we thank the Ephory of Paleoanthropology and Speleology of Southern Greece for the help they provided and for supplying the necessary permits that are required for diving or caving in Greece.

    For more information see SPELEO Caving Club or contact: info[at]speleo[dot]gr


    The entrance pool

  2. #2
    Ossi gerstl_ossi has much to be proud of gerstl_ossi has much to be proud of gerstl_ossi has much to be proud of gerstl_ossi has much to be proud of gerstl_ossi has much to be proud of gerstl_ossi has much to be proud of gerstl_ossi has much to be proud of gerstl_ossi has much to be proud of gerstl_ossi has much to be proud of gerstl_ossi has much to be proud of gerstl_ossi has much to be proud of gerstl_ossi's Avatar
    Join Date
    Dec 2006
    Location
    Italy
    Posts
    1,127
    eCCR Hybrid Homebuild

    pSCR RO80 Homebuild, LightMCCR

    Re: Sintzi Cave, Greece, report of a -153 dive

    wowwww, congratulation to all team members.
    Tuff guys.
    Chears and save diving
    Ossi

  3. #3
    RBW Member Hk101gr is on a distinguished road Hk101gr is on a distinguished road Hk101gr's Avatar
    Join Date
    Dec 2005
    Location
    Greece
    Posts
    220
    Megalodon

    Re: Sintzi Cave, Greece, report of a -153 dive

    Congratulations guys, amazing achievement! It's nice to see such endeavors succeed!
    Does the passage continue or did you reach the end of it? Do you think it's possible to push more?

    Cheers
    Dimitris

  4. #4
    RBW Member thermocad is an unknown quantity at this point thermocad's Avatar
    Join Date
    Nov 2007
    Location
    Redditch - UK
    Posts
    109
    Inspo Classic

    Home Build O2

    Re: Sintzi Cave, Greece, report of a -153 dive

    Quote Originally Posted by gtzavelas  View Original Post
    Apart from the above succesfful exploration of this huge, as it is turned out, underwater cave system, a full map of the cave was produced, and a plethora of photographs and videos were taken including video recording of the newly explored section down to the depth of 153 meters.
    congratulation....

    Are the photos/video's going to be published??

  5. #5
    In search of Law breaking Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw's Avatar
    Join Date
    Aug 2006
    Location
    Cyprus, Nicosia
    Posts
    1,455
    Meggy Meg...

    Got the best one from day 1...

    Re: Sintzi Cave, Greece, report of a -153 dive

    George,

    as previously said, well done. amazing.

    this is the stuff that i dream of doing at some point.. ;)

  6. #6

    Re: Sintzi Cave, Greece, report of a -153 dive

    Congrats, very well done.

    Bobby

  7. #7
    Markku Diedrich Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure's Avatar
    Join Date
    Nov 2006
    Location
    Switzerland
    Posts
    3,220
    Megalodon Apeks 2.5

    Classic Inspiration

    Re: Sintzi Cave, Greece, report of a -153 dive

    Congrats to all team members. Great.....!!!!!

  8. #8
    Markku Diedrich Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure is a glorious beacon of light Fun Under Pressure's Avatar
    Join Date
    Nov 2006
    Location
    Switzerland
    Posts
    3,220
    Megalodon Apeks 2.5

    Classic Inspiration

    Re: Sintzi Cave, Greece, report of a -153 dive

    Quote Originally Posted by Outlaw  View Original Post
    George,

    as previously said, well done. amazing.

    this is the stuff that i dream of doing at some point.. ;)
    Send me a pm when the point is coming.......
    Same dream here...

  9. #9
    In search of Law breaking Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw is a glorious beacon of light Outlaw's Avatar
    Join Date
    Aug 2006
    Location
    Cyprus, Nicosia
    Posts
    1,455
    Meggy Meg...

    Got the best one from day 1...

    Re: Sintzi Cave, Greece, report of a -153 dive

    Quote Originally Posted by Fun Under Pressure  View Original Post
    Send me a pm when the point is coming.......
    Same dream here...
    Markuu, i will remember this. i hope you will too...

    :)

  10. #10
    RBW Member fin is on a distinguished road fin is on a distinguished road fin's Avatar
    Join Date
    Jul 2006
    Location
    Thessaloniki, Hellas (Greece)
    Posts
    59

    Re: Sintzi Cave, Greece, report of a -153 dive

    i am afraid that cave diving is a rather small part of cave exploration skills instead of cave penetration being a type of extreme expolration diving.

    Please tell me i am wrong george

    It looks such a long way to that stage

+ Reply to Thread
Page 1 of 2 1 2 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts