I don't want to get technical or anything, but alcohol IS a solution
Huge respect - I can't hold my breath for 30 seconds without panicking. That is so beautiful to watch.
I've been in that bridge it's 45m. The top deck is 55ish. Fantastic dive but I couldn't freedive to the deco stop.
That is absolutely mind blowing!!
The sea, once it casts its spell, holds one in its net of wonder forever - Jacques Cousteau