The more I think about it, the more the limpet seems a good option.

Nobody is in a rush to eat you. I've always liked the seaside. Sometimes the tide goes out and you get to see the sun.

A pretty straightforward gig. All you have to do is hold on to the pier. I could do that job.

Of course occasionally a guy comes along with a hammer and knocks you off. However, you could be a limpet on a neglected pier that nobody bothers with upkeep of.