Clem, we are just a hop, skip and a jump away...LOL
Most if not all of your high schools and some of the colleges allow public access to there tracks and bleaches so you can do all of your jogging, sprinting along with some stair climbing plus all of your push-ups, sit-ups, flutters, jumping jacks, stretching and anything else you can think of there.
Odds are you will also find someone else there interested in fitness that you can tag up with as a workout partner.
If you can find an awesome fire instructor (
) around your location he/she would most likely allow you some access, especially if you let them know your are preparing to join the Coast Guard.
In his life changing name God Bless!