bruce brandt: yeah, that's a whole colony. oh, we got a bunch of jacks in front us just passing, right there. johnny bananas: just cruising. [music playing] i've never been in water this clear, ever. our reefs are pristine, clear, warm waters, healthy reefs. [music playing] johnny bananas (voiceover): as we dive deeper. johnny bananas: wow, it's getting dark. johnny bananas (voiceover): daylight diminishes. and with the darkness. we're almost at 500 feet. johnny bananas (voiceover): comes a whole new world. johnny bananas: that's a lionfish. he's chasing us. bruce brandt: yeah, well, he's using our light to hunt, actually. johnny bananas: ok. oh, there's a little guy. look at that little guy. what's that? bruce brandt: it's multiple organisms that cling together-- - ok - --and form this string. [music playing] johnny bananas: everything down here just looks untouched and serene and beautiful. [music playing] we've now passed 900 feet. i can see the bottom. i mean, it's-- it's otherworldly down here. we might as well be on the