About Me

Cave and Technical Diving Instructor since 2002, Scuba Instructor since 1993, I have certified over 1000 students, more than 100 of whom have earned cave diving qualifications. Working since 1993 as a full time dive instructor in the Bahamas, Mexico and Honduras I have logged more than 5000 dives, over 1000 in caves. I currently organise and lead diving expeditions to the Bahamas and Mexico. The NACD has appointed me their Safety Officer for the Bahamas.

Thursday, June 7, 2007

Testimonials page



Who?: Jack and Jackie Gregory, Georgia, USA
When?: 19 Aug, 2004; 22-30 April, 2006







Crazy Jack’s Most Excellent Bahamas Cave Adventure

In the Bahamas last week (Grand Bahama IS) serving as the loyal, overworked, and hard humping Dive Master for some of my OW buddies on the standard reef and wreck “buy-off” trip. That’s the trip that you just hate going on BUT if you do, you have “bought” your wife’s goodwill to ensure yet another year of her diving with you in the caves. So, the first day while I’m standing around at the LDS we were using (Xanadu), I noticed several of the NACD Stop Signs. On checking further I found out that “Bahama Ben” Cook, who leads OW’s around, is also an NACD Instructor and happens to be the NACD Bahamas Safety Officer.
This is getting interesting because, when it comes to his appointed task, Bahama Ben reports in the NACD hierarchy to our Instructor in Florida (who is the International Safety Officer). Small world and time to tell outlandish untruths and BS tales about the same people we know (sorry Michael).

I am able to find out that yes, there is one helluva big system a little east of the LDS, by the name of Old Freetown System. I, of course, start to immediately wonder if I can scrap together enough “stuff” to safely pull off an nice afternoon trip after Ben gets off (he makes his living dealing with OW divers, so we had to work around that schedule). Come to find out, when I started really looking, about the only thing that I didn’t bring were my regular wings and backplate. Could that be why I needed 3 bags @ 70 lbs each? If I have to do OW, I use my long hose DIN Scubapro’s adapted to yoke. I even had an HID and a couple of safety reels! I have never been in a cave outside of Florida in my life…I had to do this. So, I bubba rigged my OW Transpac and instead of using the 2 stabilizer brackets that you can get for this, I just removed the lumbar pad and in its place put on a full AL backplate from the DS…with nothing running thru it. Ben had an extra set of double AL 80’s, so I was set there. All I needed were a couple of line arrows (that Ben loaned) and this boy was finer than frog hair. Miss Jackie had decided that she wanted to hang on the boat with her girl buddies (which was good because Ben didn’t have anything else to loan out, AND after a week of having to deal with me, was pretty sick of me anyway).

So last Thursday (08/19/04) off I go, with Bahama Ben driving, which is good because I would have surely crashed, still trying to drive on the right, causing an international incident of carnage, not for the cave divers to have to sort out, but for the U.S. Embassy, I’m sure.

Picture, if you will, an absolutely knock-out totally secluded beach on your left running from the surf to the backwoods road that you are driving on (about 150 ft from the surf to the road) and then the vast (and deep) Bahamian jungle on the right next to the road. Ben suddenly stops the rig and says “let’s walk to the site…I have to clear some things out as we go.” The walk is only about 125 level yards to the head pool BUT what he has to “clear-out” is about three to fours huge bright yellow spiders that have taken up residence at face height right on the path. He calls them “Harmless Banana Spiders” but one of them looks the size of a couple of stacked Krispy Creames. Miss Jackie later tells me that she would have kicked my ass if I had made her go. I have seen worse entrances in FL, but none have smelled as bad…not even Telford on a Sunday afternoon. Ben tells me that’s the typical sulfides that you get on the top of these systems. Well, OK, I can deal with the smell, BUT that surface water definitely looked like what you poor out of a bedpan….for sure not your Little Rivers look from the parking lot. We go back and gear up. I walk off the tailgate with my rig on and I SWEAR, I have never felt such light doubles. I now understand why those divers in Mexico don’t have the ACL and Meniscus problems that your good ole standard OMS 112’s on a steel backplate are just waiting to give you back here. And here is what later would become my one and only problem with the dive. Ben and I now make our way back a second time. The Banana Spiders have high tailed it to some other cave system and we are ready to enter the infamous “Mermaid’s Lair.”

We do our pre-dive, primary tie off within a foot of the surface, and then descend into the cavern for S-Drills. This is when my mind is literally blown more than when I was running around doped-up in the mud at Woodstock in 1969….and that was the halocline. Well, until this point I had never been thru one of these. What I will vividly remember for the rest of my life was this experience…Picture a thousand little shiny mirrors, all holding the cavern scene, but pointing in slightly different directions….some brighter than others depending where your light was. This Timothy Leary effect lasted for about 20-30 feet until we hit clear (and I mean GIN CLEAR) 73 degree water below it at about 50 feet. Now, as all y’all know, there are caverns and then there ARE CAVERNS. I had never seen anything like this one. It was so big, that you could have run 20 different time share presentations in the damn thing and never run into anybody.

As we descend, you run into one of those NACD Stop Signs…..something that all of a sudden lets you feel that there are friends out there. The first section kinda reminded me of the chimney at Little Rivers. At the bottom you hit between 70-80 ft and the depth remains at that level, at least as far as I went. But here is what is different. Have you ever seen all those funny looking “3-4 foot things” coming off the ceiling and floor at Little Rivers?? Needless to say, the stalactites, stalagmites, and overall speleothems were unbelievable. When we shined our lights on the cross section of some that had been broken, the most unbelievable and intricate quartz formations could be seen. Ben is still working on getting gold for the mainline in this section so right now double arrows on # 24 are the main way of knowing that you are mainlining because of the many jumps. And this place is Jump City. You want side tunnels that go for hundreds of feet???…then this is the system for you. We had a clay silt floor all the way in up the mainline tunnel which also did a 180 in the first 500 ft, again like the Little Rivers. Big tunnel that narrowed down in a couple of spots. I turned the dive after about 30 minutes because guess what, you remember those light tanks that I mentioned? Well, son, they were too light! Gas Bag that I am, I needed about 4-6 more pounds after they were breathed down a bit. I literally drained every ounce of air that I could out of the Transpac, but it didn’t help much. If I didn’t call the dive, I would probably eventually wind up crashing into some of Ben’s favorite formations on the ceiling and that was the last damn thing this kid was going to do. So, next time I’ll bring the weight and I’ll bet that we will be able to set up a nice traverse between Mermaid’s Lair and what I now know to be the “Owl’s Hole.” (and we did---2 years later!)

So, if any of you find yourself on Grand Bahama, look up Cave Brother Bahama Ben Cook (242-373-2093; BahamaBenCook@hotmail.com; NACD I-137) for the dive of a lifetime. I was really surprised to hear that not many cave divers get over on Grand Bahama…at least ones that he is aware of. I plan to change that.

June 7, 2007 9:10 AM


Crazy Jumpin Jack (and Jackie) said...
If anyone wants a copy of this report with the images that did not post to the blog...just E-Mail me @ jjgregory@mindspring.com...and I'll sends it along. Also, check out this video!!
http://www.youtube.com/watch?v=F4LV8cFQC6g

Idiot Jack

June 7, 2007 9:20 AM

The Saga of the Owl Hole Laddder


 
   Owl Hole, Grand Bahama, is a classic example of a limestone sinkhole- it’s rough circle of an entrance, with a diameter of approx. 50 feet, slopes off  under your feet.  Thirty feet down the water surface is reached; sixty feet deeper the cave floor.   Rocks, which once formed the roof to this section of the Old Freetown cave system, form a large pile, or debris cone, reaching back up to within fifteen feet of the surface.  The early cave explorers reached the water by rappelling (ab-sailing) down from the lip, their anchor points can still be seen drilled into the bedrock.  I arrived on the scene shortly after Ben Rose’s 60 foot long aluminium ladder had been stolen after being left out near the cave entrance overnight.   This was back in 1994, and as a newly certified cavern diver- who had just spent his life savings on the contents of the dive-rite catalogue- I was desperate to get down into that cave.  My two intrepid ‘cave diving’ buddies, Eric Pedersen and Steve Lombardi, and I were sure that if we could just do a few dives from the Owl Hole side we could link up with our rather aimless ramblings from Mermaid’s Lair, and thus complete what was, to us, the almost mythical traverse-even though none of us were actually cave certified at the time, and had very little idea of how this may be achieved.  Luckily, we had neither the equipment nor the expertise to attempt rappelling, so our cave diving adventures were limited to clueless forays in Mermaid’s Lair, after our days work at the nearby Underwater Explorer’s Society (UNEXSO) was done.  After learning the hard way what a T is, and what a good idea it is to mark the exit side, and finally realizing that we were swimming in circles and advancing no farther from Mermaid’s, Eric and I took the plunge and enrolled in a Technical Cave course with Tony Satterfield over in Florida (still the greatest dive course I’ve ever taken).  Somehow, I managed to persuade UNEXSO that it was in their best interests to construct a permanent steel ladder down into the hole.  They provided the steel, Steve welded it together, and we got ready to pop it into place.  The Season arrived, planning a decompression cave dive as our third or fourth dive of the day seemed less attractive, and Eric and I were busy getting slightly less disoriented from the Mermaid’s Lair side when we did have the time. Steve left the island.  Eric left the island.  I discovered the ladder was really heavy, and no one really wanted to help me carry it.     I also eventually left the island having never seen the ladder in place. 
I visited the island once, I think it was 1999, with Kate Lewis and Steve Serras. The ladder was in limbo, having been installed briefly, then removed as a potential hazard to the Owls that frequent the sinkhole. We had an enjoyable week of cave diving from the Mermaid's Lair side, and off the beach in 'Chimney Hole', but still no Owl Hole for me. Upon moving back to the island in 2003 to manage the Xanadu Undersea Adventures dive shop, imagine my delight to find the ladder back in place! Cristina Zenato had dropped it back in as soon as the Owlcentric political wrangle had been straightened out.

I finally got to dive the place, and what a place! The hole gets wider the deeper you go, until at the bottom it has a diameter of approx. 150 feet, the views up from here are stunning, there is a great halocline at 40feet, and 3 huge cave tunnels lead off into thousands of feet of cave. Everything went great, 10 dives later I finally made the traverse from Mermaid's to Owl's, I was able to use the cave in my courses, as it claimed one of the few undecorated passages on the island, which was ideal for more 'high-impact' training drills. Then, around June 2006, along came Kevin Jones to finish his cave course. Kevin and I had known each other for a while through Chip Earle's SeaDevils scuba club, and the course went off to a great start. Kevin had been lucky enough to have a really thorough Cavern instructor, and had put a lot of thought into preparing for the course. Anyway, to cut a long story slightly, Kevin was making his way down the ladder with twin alu. 80's on his back when one of the rungs gave way. Luckily, barring a few bruises, no serious damage was done, but it showed those boffins were right, steel does rust in water after all!

Obviously, something needed to be done, we needed a new ladder. First of all, Steve Robinson, my Dad, and I went out there one evening to winch the old ladder out, inspect for damage and make a plan. We decidied that there wasn't enough good steel left to effect repairs, so a brand new ladder would be needed. I left the island in September 2006, moving to Miami with wife and family, so Steve was left to finish the job himself. He has done a magnificent job, and 2 weeks ago, on the 26th May, the new ladder was installed with the help of Steve's mate Billy. The new ladder is made from a higher grade marine steel, and has been designed to allow retro-fitting of a platform to it's base; to remove it from the water, lightening it's weight, and prolonging it's life.
The next step could well be installing a 'kermantile' guide line along the traverse, cleaning up this section to convert some of those T's into jumps. Keep posted for details.


Monday, June 4, 2007

Basic Outline of Cave Course on G.B.I.










Grand Bahama Cave Course Outline

Day One: Meet at 8.00a.m. with all cave diving equipment.
Paperwork: registration forms, waivers, medical form, conservation form.
Theory: 1. Orientation to NACD and cave diving.
2. The Cave Environment.
3. Cave Diving Techniques.
4. Communications.
5. Accident Analysis.
6. Guidelines and Guideline techniques (Land Drills #1).
7. Dive Planning and Gas Management.
8. Equipment Set-up and Discussion.

Lunch/ Drive to Site

Dive 1: Ben’s Cavern or Owl’s Hole

Openwater skill circuit.
1. Familiarisation to Cave Gear in the water.
2. Propulsion technique practice(modified flutter, frog, and dolphin).
3. Line Following with and without visibility; sharing air; touch contact; without mask.
4. Reel use.
5. ‘S-Drill’ practice.
6. Horizontal out of air swim to donor (approx. 60 feet).
7. Gas valve management.

Dive 2:
First dive into the cave environment, introduces team to proper dive briefing, bubble check, equipment matching, ‘s-drill’, team positioning, line protocol, communication, safety/deco stop, gas valve management and post dive debriefing. These elements are an integral part of all cave dives during the course.



Day Two: 8.00a.m. start and drive to site.
Theory: 1. Emergency Procedures/ situation management.
2. Recognition of potential stressful/ emergency situations.
3. Psychological aspects of cave diving.
4. Cave Conservation.

Dive 3: Owl’s Hole (s.e. passage).
-upon turnaround, switch to back-up light while continuing to exit.
-extinguish back-ups and complete exit in touch contact.

Dive 4: Owl’s Hole (s.e. passage).
-upon turnaround, initiate share air.
-complete exit sharing air in the dark.

Lunch/ change tanks

Dive 5 & 6: Owl’s Hole (s.e. passage).
-as dive 4, with each team member alternating roles and position.


Day Three: 8.00a.m. start and drive to site.
Theory: 1. Medical aspects of diving/ DCS.
2. Dive Table Review.
3. Use and Misuse of Dive Computers.
(cavern certification could now be issued after exam).
4. Land drills #2: T’s, jumps, gaps, lost line/buddy,
line entanglement.

Dive 7: Owl’s Hole (s.w. passage).
-following rule of sixths(intro level), jump to main line from cavern line, cave dive past 2 T’s.

Dive 8: Owl’s Hole (s.e. passage).
-enter to beyond cavern zone, where each team member shall successfully perform a line entanglement drill.

Lunch/ change tanks


Dive 9: Owl’s Hole (n. passage).
-rule of sixths, Jump and T’s.
(intro certification can now be issued upon completion of exam).




Day Four: 8.00a.m. start and drive to site.
Theory: 1. Cave orientation, referencing and navigation.
2. Circuits and Traverses.

Dive 10: Mermaid’s Lair

-rule of thirds, limited deco possible.
-circuit set up dive.

Lunch/ change tanks

Dive 11: Mermaid’s Lair

-Circuit completion.

Day Five: 8.00a.m. start and drive to site.


Dive 12: Owl’s Hole (s.e. passage).

-Penetration to ‘Big Room’ and beyond, multiple T’s.
-Prep for Traverse.
-air share through restriction.

Lunch/tank change

Dive 13: Mermaid’s Lair

-traverse attempt





Day 6: 8.00a.m. start and drive to site.
Theory: 1. Stage decompression theory and procedures.
2. Inert gas narcosis and oxygen poisoning.
3. Physiology.


Dive 14: Mermaid’s Lair

-jumps
-air share through ‘the kink’

Lunch

Afternoon can be used for any ‘make up’ dives, to catch up on theory, and to hand out exams.

Day 7: 8.00a.m. start and drive to site.
Exam grading.

Dive’s 15 & 16
These 2 dives will be tailored to the group’s capabilities, and will be an opportunity to explore techniques designed to safely extend cave time. The objective will be to spend as much time in the cave as the group is comfortable with. By this point we should be thinking and diving like cave divers, this is your chance to really enjoy the caves and show off what you’ve learned. As always, be prepared to be tested!!


Notes: This outline can be changed for any number of reasons relating to logistics or performance of the group. I hope it will help you visualize what you can expect from the course. All candidates should have had the chance to thoroughly read the NACD Cavern/Cave Diver Workbook as a minimum before starting the course.

Ben Cook/ NACD I-137

Sunday, June 3, 2007

Welcome


I would like to welcome you to Bahama Ben's Dive Expeditions. Please feel free to contact me directly with any questions as I expand the information offered to include details of up-coming trips, reports of past expeditions, and details of the diving services I offer - including openwater certification, cave and technical diving courses, cave diving tours of Grand Bahama Island and the Yucatan, on-board instruction and guiding, even shark feeder training!
Ben Cook,
BahamaBenCook@Hotmail.com