The Fish Are Biting

I live on a mountain lake in the summer. And the fish are biting. Not biting the worm, but biting ME. Everytime I try to go in the lake to swim, if I slow down at all the fish start trying to bite moles off my legs and back. These moles don't look like worms, but they apparently look very appetizing to catfish, mountain trout and big-mouthed bass. It's not that their bites hurt all that much, it's just that it scares me. It could be the Loch Ness Monster, you know.