You guys both know I'm sure, but fly fishing in the ocean can be pretty damn cool also.
with that said, deep ocean intrigues me. The ocean in general scares me a bit but only because of the raw power and danger of the open water. You're more likely to be sucked out in an undertow or small craft blown offshore than some sea monster coming up and grabbing you. I do still get butterflies though when a couple hundred yards out though in a kayak.
I'm becoming more comfortable in the water though, you just have to realize the chances of something dangerous being nearby let alone attacking you are very very slim.
I think we should have been exploring the ocean floors instead of space honestly.