I'm a trained lifeguard, so I swim quite a lot.
In addition to swimming I exercise regularly at home. I have a routine of sorts, lifting weights, press ups, sit ups etc.
By and large I'm in pretty good shape, so I'm happy to just keep what current exercise I'm doing up.
I would perhaps like to increase my overall fitness though, so jogging mightn't be out of the question in the forseeable future.