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It depends a lot on how active you are. If you are just relaxing, not working hard, you will last a lot longer.

It would be trivial for me to create mp3s of the preset tables (I'd just make my computer sit there and record as it goes through the routine) - not sure if it's possible to do it on-they-fly, I don't know much about multi-media manipulation. Also not sure about how to do it so that you could...

I don't have experience with those books but I'd recommend finding a buddy who knows the ropes. A buddy is essential - and maybe can give you some tips.

For me, I use all longer ventilations for breathe-ups. For shorter holds ( < 2:30 ) I do slow breaths until 30 seconds of ventilation remain. My "slow breaths" are inhale for 1s, wait for 2s, exhale for 10s, wait for 2s. Then from 30s to 10s I do a modified version, inhale for 1s, exhale for...

There are some ways to slightly increase lung capacity, I think, but you're much better off learning how to do proper breath-ups, how to lower your heart rate, and how to build up tolerances to high levels of CO2 and low levels of O2. Do a google search (or search this forum) for information on...

If you are properly weighted you should be positively bouyant for the last 10 metres or so on the way up, which means you won't have to work too hard to get to the surface. Exhaling for the last few feet isn't necessary, but it does mean that once you hit the surface you are ready to take a...

Thanks so much for the feedback, I have fixed the bug =0) Caveat: The following information is what I learned through my own reading, my own experiences, and through the PFI course I took last fall (I *highly* recommend this course, Kirk and Mandy-Rae are amazing instructors and the course is...

I've coded up an online application for practicing your CO2 and O2 tolerance tables. There is a set of standard tables, plus you can build your own. If you have speakers or headphones, you will get audio telling you when to start and end each hold, also giving a countdown on your...

Whether or not you have "warning" signs depends on your definition of warning, your own body, and the particular blackout. Everyone is different and every breath hold is different. Some people get a very strong urge to breath right from the start of their breath holds. This could be an...

It's called a monofin. They are more efficient.

I'm pretty much limited to PFI as it's local for me, they are having workshops here in Vancouver in the fall. If I decide to go ahead with it I'll ask them what they recommend for gear. The course is really for me to see how serious I am about getting into this...I think it might be serious...

Has anyone taken one of the Performance Freediving courses? Performance Freediving | courses | Just wondering if it is worth the cashola. I'd need to buy all my gear too, I don't have a low-volume mask, etc.

I only just started practicing with tables, did them for the third time ever (all three this week). Right after doing both sets, I was really relaxed so I did a couple of holds just to see how long I could go. First one was 3:44, second was 4:10. Considering I've only been practicing for a...

I ended up going with Molokai Fish and Dive. There were only three of us but they were able to make an exception because for all of us it was our last chance to dive there. Good dives, although not as much life as the Big Island but I did see my first shark (6' white tip) and a big ulua. Very...

I'm a newbie diver (two dives since qualification) but I've noticed a weird effect which might be a bit of narcosis, need your opinions on this. Back in my crazy younger days I used to use some drugs (pot/mushrooms) once in a while, and I always found that for a few days afterwards I felt...

Wanted to say hello to other freedivers here. I've just started trying to dip below the surface, still pretty new. The experience of being able to go down enough that I actually *stay* down is pretty cool. I have no plans to try to go deep, I just like to enjoy being below and taking a closer...

I just read The Dive and can't come to any real conclusions. All we know is what we read about it, we don't know the people personally and we weren't there. While I feel that it seems Pipin may have been partly to blame, when it comes down to it we all must take responsibility for ourselves...

I'm going to Molokai from May 4th-11th, just got my PADI cert here on the Big Island. Anyone else have suggestions? I'd like to do at least a couple more dives before I head back to the mainland, but I want to go with a shop that makes me feel comfortable (I'm not a nervous diver but I am NEW!).

I've been living in Hilo for 3 months now, moving back to Vancouver, Canada at the end of May. Just got my PADI Open Water yesterday, huzzah! Anyhow, I've been a lurker for a while and I thought I should say hi.