've read in many many blogs that wearing a waist belt is the ultimate "rob me" sign. However, I bought a waterproof waist belt that can hold my phone and some cash (not a lot) to use when I'm at the beach and want to go swimming. I'll be traveling alone and I want to be able to go into the ocean without worrying that someone will steal my stuff when I'm swimming. What else do people do when they're traveling alone and want to do something like swimming in the ocean? How do they protect their stuff while in the water? Any suggestions?