>>1989855>Do freedivers use any spare air at all?It is illegal, in California, to use 'spare' air (which would be SCUBA) for abalone. You can only free-dive for them.
>back in the '80s some Korean boats went out with SCUBA gear and decimated (or worse) the abalone. Totally illegal. It pissed everybody off.>laws changed and there was a moratorium for awhile.I have never-never encountered "air pockets"
There are free-diving courses. By now there must be lots of places. Back in the day it was NAUI and then PADI came along and was intended for the newbs who were on vacation. NAUI was/is the best one... but I've not been diving for a few decades now.