ocean jumping just as sketch as jumping into rivers/lakes. most of the time rocks are a shitload sharper, and water ain't all the that deep a lot of the time. A bunch of those spots in bermuda the water's like 6-10 feet, sometimes un-hittable at low tide. You also have to deal with rough seas, I was in st. thomas this past spring and we were trying to climb up the rock from the water on the lee side of the rock in like 2-3 foot swells. Gripping on to coral is almost impossible, it cuts the shit out of your hands, and I don't know if you've ever tried, but climbing out of water on to a cliff is hard. Anyways, a swell came and knocked my friend off into the coral, he was under for like 15-20 seconds, apparently he said he was trying to free himself from an underwater coral cave that he was entering. I swam back to the boat thinking he was okay, but he got knocked up pretty bad and couldn't really swim, so when i got back on to the boat, i realized he needed help. I dove off and dragged him back on, luckily he was fine, could have ended a lot worse. Just saying ocean cliff jumping can be just as, if not more dangerous that freshwater jumping.