Start working on your body

At a local gym you can play badminton, volleyball, Frisbee, ping pong etc. Those are some favorites. If you arent active much, a walk in the park will do you good. Maybe start eating healthier so you will feel your best when you wear that bikini. Rock climbing or sport climbing is a great thing to do during the summer but the rock climbing joints are hard to find so you are lucky if your town offers one!