ridiculously talented and incredibly brave! kudos!

I held my breath the entire time!

Cool!!

Wish we had something similar to the SETT here in CFL.

Remember... water is very heavy. A 30m change in altitude will not change pressure significantly because air is relatively light. So even if water is above sea level, it still is bearing down on you with all its weight. As to weather the SETT is in fact a tower, I don't know. Point is it makes a negligible difference. Longer answer than you might have wanted...

MUY BUENOS BUCEOS !!!!

is that a 25 m vessel ?

Look so simple but I know the performance!!

@givangkara its a 30 m tank ..

@ Programista00001 that's a 15Kg weight belt in fresh water, it is possible to swim up with that weight but this is not an adrenaline sport, relaxation is the key. You obviously don't freedive, you should give it a go.

It wasn't training it was teaching. It was her first time ever freediving.

ask a submariner, tis part of the enjoyment and qualification

@TinkerBell5421 She wasn't carrying the weight belt and she had fins on.

@elvishwolfneo : wooww.... 30 meters dive n there's no deco-stop.... :-o

@jakehsorus Yes of course but the body is buoyant.

so,why this pool was built???

There's no way I could do that I would die

fair enough, I take that back then.

that would be good training but it seemed a pretty poor effort with all that ballast only going to the 20 metre mark?

Shame? He swam up carrying a 10kg+ weightbelt? Please, if you've ever been freediving and tried to carry that much weight up on your own, you'd know how much to appreciate the aid of a rope.