I don't feel like I can get clean in a bath, either. It's all right if I want to relax or something... but even then I have to scrub it clean first and take a shower after.
I shower after I get in any pool or hot tub because of the chemicals most have to keep the water clean. So that doesn't bother me.
THE OCEAN, on the other hand, is hit or miss. Some days I get really OCD about it and can't stop thinking about all the carcasses and waste floating around in it. The sand really bothers me and I don't want to deal with all of the people that usually populate the shores.
Then there are other days where I just feel like going to the beach and having a swim. The sand doesn't bug me, the people don't irritate me and I don't focus on the negative aspects. <: