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    Igor Zorin and Sergey Petrov, October 2014, in Orda Cave, Russia, Photo by Tom Johnson/tj

    The purpose of the Cave Diver's Forum is to provide a place on the internet for civil discussions of anything cave diving related. This site is not a place to learn how to cavern or cave dive. This site contains plenty of comments, stories, reports, and opinions. Be careful, responsible, and mature, both in your posts and how you use anything you read here. Moderators do not monitor the accuracy of the content of threads posted here, and the opinions posted herein are personal opinions, and as such can be misleading and/or inaccurate. Entry into any overhead environment without proper training and equipment can get you killed.

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    NSS CDS 2013 Workshop in Crawfordville, Florida, 24-26 May 2013

    Social and Galaxy Dive at Ginnie Springs, 31 Dec 2012 & 1 Jan 2013

    Social and Galaxy Dive at Ginnie Springs, 31 Dec 2011 & 1 Jan 2012

    Pictures of the Galaxy Dive Social at Ginnie Springs, 31 Dec 2010 & 1 Jan 2011

    Pictures of the Social at Manatee Springs, August 2010

    Social 4 July 2009 in Luraville, FL

    CDF social gathering of cave divers at Luraville, FL on 4 July, 2009

    Pictures of the NSS CDS Workshop, May 2008

    Pictures of the NACD Seminar, November 2007

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  • Recent Forum Posts


    SMS 75/100D hybrid?

    well, this has taken a disappointing turn. I'll talk with the guys at CA to confirm they haven't made any headway with modding the 100D, and then maybe I'll be crossing my fingers there will be a...

    Aotus 10-23-2014 09:43 AM Go to last post

    SMS 75/100D hybrid?

    I would imagine the problems with the dual bladder SMS100 would stem from the way Edd bungies the wing down. He essentially squeezes the top and sides down so that it is more streamlined and more...

    bamafan 10-23-2014 09:41 AM Go to last post

    SMS 75/100D hybrid?

    I've been diving for almost thirty years, cave diving for almost twenty, working in at least one shop for almost twenty, and I have direct knowledge of zero bladder failures happening during a dive.

    Slüdge 10-23-2014 08:46 AM Go to last post

    FS: Tekna Scooter

    Last chance for N.Fl delivery. Heading out Friday afternoon.
    Feel free to make offers or interesting trades.


    jdh 10-23-2014 07:53 AM Go to last post

    Trade my Hollis SMS-100 ?


    loquat149 10-23-2014 07:27 AM Go to last post
    Kelly Jessop

    DPV gas planning

    The only thing I hate to see is gas planning based on math exclusively versus some real testing. So many people will say I can exit from the Heinkel on an AL80 stage because I have a SAC of X, swim...

    Kelly Jessop 10-23-2014 07:04 AM Go to last post

    Hollis SMS 50 For Sale Great Condition


    Sent from my iPhone using Tapatalk

    Diverlee 10-23-2014 06:00 AM Go to last post

    WTS: Hollis SMS 50

    What size is the harness. I am interested. Don won't beat me on this one!

    Sent from my iPhone using Tapatalk

    Diverlee 10-23-2014 05:54 AM Go to last post

    Cave Adventurers Annual Customer Appreciation Day 2014

    That would be great. I hope to see you there.

    FW 10-23-2014 05:50 AM Go to last post

    DPV gas planning

    I still plan it the way you taught me in DPV class. Assuming a two man team with at least one diver in backmounted doubles, one scooter for each diver: plan gas to be able to swim out with one total...

    steve2281 10-23-2014 05:29 AM Go to last post

    Underwater drill

    If you are wanting to take cores there is alot of rotational force. For core drilling in concrete that is a lot harder than limestone the base of the drill is anchored so leverage can be applied and...

    bamafan 10-23-2014 12:23 AM Go to last post

    DPV gas planning

    Depends on the dive and it depends on the cave.

    Sometimes enough gas to swim out. Sometimes enough scooters so that I won't have to swim out.

    IMO, planning to swim out on a deep cave dive is...

    PfcAJ 10-23-2014 12:22 AM Go to last post