I think if a cliff fell off when I was on it, I'd be a bit too busy being dead to worry about swimming. :-O

Fish, crabs, rocks, stones, slimy things, bitey things, stingy things and so on are indeed a worry in the sea. But I find it very hard to resist the visual appeal of sunlight sparkling on water beneath a blue sky. And I love the sound of waves, and hate the sounds of a swimming pool. I sometimes go paddling in sandals, but I don't imagine it will work so well if I was trying to swim.

I guess I have two issues: the being unable to swim issue, and the wearing a swimming costume in public issue. I probably need to get a swimming costume and do some non-scary paddling in it, to get past that part of it. But not in November.