I just returned from a dive trip in the Bahamas. About three years ago some friends and I took the PADI openwater certifacation course. Scuba has turned into one of my favorite hobbies, even though I do not get to dive very often. Do you scuba dive? My excercise routines change with the seasons. In the spring/summer I lap swim and bicycle as much as possible. As the weather gets cooler I hit the gymn more regularly and start running.