PADI nitrox is fine. Most depths are under 100 fsw.
I dive (and instruct) the Kiss rebreathers.
As far as other favorite destinations:
For "big animals" I'd say #1 Cocos, #2 Galapagos, #3 Socorro (though #1 for mantas), #4 Bahamas
For macro, #1 Indonesia, #2 Papua New Guinea, #3 Dominica & Bonaire (tie)
Just my 2 cents.
Doug
I dive (and instruct) the Kiss rebreathers.
As far as other favorite destinations:
For "big animals" I'd say #1 Cocos, #2 Galapagos, #3 Socorro (though #1 for mantas), #4 Bahamas
For macro, #1 Indonesia, #2 Papua New Guinea, #3 Dominica & Bonaire (tie)
Just my 2 cents.
Doug