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That's the German version of the Seals, here is an interesting article with a few good photos: https://medium.com/war-is-boring/german-combat-divers-are-busy-on-land-and-underwater-7c6cd8ad56ef

By everyday standards, of course he was nuts. Sane people don't try for depth records. Was Mallory nuts? How about Joseph Walker the first man to reach space (in a X15)? Any of these people are insane by normal, take no risk, people.

I don't know if he has been mentioned in the ten pages of replies. But number one on any list should be Sheck Exley. He pioneered so many areas of SCUBA that you cannot list them all. He started diving at 15 or 16 in the pre-BCD age, he carried a beach bottle around that he would add or remove...

That looks promising, if it turns out that I need something I'll get one.

Thanks for the comprehensive answer. I was skeptical since it seemed that the vent would allow water in and then thru the tube opening into the middle ear. When I ruptured that eardrum diving in the spring the cold water going into the middle ear was rather a shock. We won't be diving this...

I have long standing problems with my ears- fluid in my middle ear and not very functional Eustachian tubes. I blew out an eardrum snorkeling a couple years ago. That kept me from even trying SCUBA until last year we took a dive boat snorkeling trip off Marathon. I didn't have any problems...

It worked when we were diving off Key Largo. We all have computers but this was still a cool item to have.

Ah, the guide was male not female. So maybe you weren't in our group. And as for Rainbow Reef, I wasn't upset about having to wait for the boat to come to us, and didn't hold it against the guide. He had only been doing this for a few months. I just would have preferred to have done four...

Sorry about that, I guess you were the two people tagging along behind the group. It seemed like you two kept swimming over me since I was close to the bottom, but I'm by no means an expert diver and haven't claimed to be anything but a newbie. Sorry you had to devote your one and only post for...

Good tip on the mask, I'll remember that. I noticed some of the others pulled their mask down around their necks. BK

I just logged on to ask the same question...heh. I'm using PS CC tho. You can process jpegs using ACR by right clicking on the image in Bridge and selecting open in ACR. There's a preference item that turns take on too. You can use the white point adjustment dropper to reset the color temp...

Well on the first dive after we entered the water and while we were waiting for the group to form up, I dropped down to about 10 feet and was looking around. The guide/dm quickly came down and ordered me up until the group was formed. I guess I could have told her no, but since my wife was...

Absolutely I would surface and keep an eye on the boat if diving with our group alone. Especially since vis was maybe 50 ft max and I would not trust my navigation in those conditions. But Rainbow Reef doesn't give you the option to dive without their DM tho I guess they may call them guides...

Ah are you suggesting we should periodically surface to check the boat's location? Those DM's have the group zig-zagging around and I defy anyone to know their location without great familiarity with the area. Not without a plotting board, and that would seem to defeat the purpose of the...

I guess that's possible. They would not tell us ahead of time where we were going. They said that we'd have to wait until we got there. There was a regular traffic jam of dive boats out, not surprising I guess when you consider how many dive shops there are in Key Largo. BK

I doubt they'd schedule a Spiegal Grove dive and then switch it. Not with a bunch of advanced divers on board. That sort of thing is easier to get away with with newbies. BK

The point is that the instructor never mentioned HSA, she signed up for a PADI cert, used the PADI material, watched the PADI DVD, did the PADI dives, and took the PADI exam. He told her she passed and the first thing we knew about HSA was getting their card in the mail. BK

I got a long response from Jim Gatacre from HSA today. This was part of it: "For HSA Level A Certification we actually require 3 types of sharing air skill development and evaluation, and basic lifesaving skills. The HSA also requires the open water students to ‘find and identify one...

We finally made it to Key Largo at the same time as good weather, had four dives over two days on the Tropical Odyssey boat from Rainbow Reef. Friday dives were to the Winch Hole and Fire Coral cave. Saturday we went to Northstar and then back to Fire Coral which irritated me a bit. The boat...

I did OW with SSI and my wife did hers with PADI. Just from some brief looks at the PADI book I'd say they do a better job. SSI OW book is loaded with "product placement adverts" for SSI. They continuously push their advanced classes and many of the chapter end questions are just word for word...