It really is quite amazing the number of human limits free diving tests. Herbert Nitsch is able to dive over 350 feet deep essentially unaided, and has gone to over 830 feet in what they call a "no limits" attempt, in which weights and fins are allowed, and weight can be dropped to aid in the ascent, although he did suffer from nitrogen narcosis and needed to spend some time in a decompression chamber . He can hold his breath for over 9 minutes, whereas I can barely make it to 1 minute. The guy's lung capacity must be incredible.
> He still has balance and coordination problems on land, but does not experience these underwater. He continues to deep free-dive.
It's like the sea claimed him.