• Looks like 100 feet.
  • Depends on what you breath. On air I have been to 60m. Trimix divers have been over 100m.
  • Its only depends on your threshold for risk . A Professional Diver can go around 200 feet. Definitely you start taking higher level of risk if you go beyond 200 feet. Its dangerous.
  • According to my PADI Scuba Instructor 120ft is about the limit with regular gear and enriched air. (Just took the course last month)
  • i have been to 120 feet on normal air but i am the first to say this was a stupid move- a pro diver with mixed gas can go to great depth but requires major decompression time
  • in the movie "the abyss" a guy breathed water and went down farther than mixes or regular air would allow... it seemed really far... I don't think it was real though, =)
  • Are you asking how deep is it possible to go, as in possible for a human to withstand? Probably hundreds of feet. But you'd need to bring extra tanks and go through a series of decompression stages (where on the ascent to the surface, you have to stop for a designated number of minutes at various depths). But if you're just curious about how deep do most divers go... I have 340+ caribbean dives logged over the last 10 years. Most dives are 40-80ft. Many are to 100ft. But usually only a few minutes are spent at that depth. Maybe 5-10 mins at that depth. Occasionally, I've gone to 130ft. The thing is, the best coral is from 40-80ft because coral needs light. The other thing is, you literally use 4 times as much air in a single breath when you are at 99ft (4 atmospheres of pressure) compared to breathing on the surface (1 atmosphere of pressure). Literally, if you inflated a balloon at 99 feet, and brought it to surface, it would be 4 times as large (well, 4 times the volume). Anyway, back to your question, if I dove to 100ft, I'd run out of air 4 times as fast as if I stayed closer to surface. Most recreational divers use a tank of air in 45 mins. I have averaged an hour, and have many, many dives at 80-90 mins. And 1 dive to 120 mins on a single tank. The key is relaxed breathing and slow movements. Plus, since no one else I know is that great on air, I have to solo dive in order to hit those 2 hr dives. And no, it's not that dangerous to solo dive. I have a small spare air tank in case of emergencies and I do it from shore and stay relatively shallow.
  • &lt;quote>Looks like 100 feet.</quote> No it isn't. That link takes you to a company that has applied rules for diving at the Galapgos Islands. That does not mean diddly for diving else where. I am a trimix diver qualified to 90m....that's meters not feet! I know of divers who have dived deeper. It's just the deeper you go the more planning and backup you need. 'Deep Sat' is about as deep as it gets and they have a whole boat of backup with recompression chambers on board. But they do dive to 300m. 100 feet! There are people who can free dive deeper!
  • 330m (about 1080ft) seems to be the current world record by Pascal Bernabé. The official guinness world record might still be 318.25m (1044ft) by Nuno Gomes. Those were very complex technical dives though with a shitload of gear & people to help and looooong decompression times on the way back.

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