I'm a competitive swimmer but recreational swimming can also be a good way to burn calories. Swimming has many benifits like you can do it if your disabled or old. It's a lifetime sport If you do join a good competitive swim team you can really get in shape if you push yourself. Well there might be some people embaressed about wearing speedo's. I was when I first started too. I've always wondered about track. I would like to do it, but if you start getting really old you can't do it. It's can also deterorate your cartalge.