Putt-Putt: We like Adventure Cove best, because there are activities to entertain all ages. They have 2 courses, a driving range, batting cages, video arcade, a play area for little kids, and Subway/pizza hut food stand inside. It gets crowded though—go early or be prepared to wait.
Bike rides: Bike rental is cheap and convenient, and there are bike paths from one end of the island to the other, as well as in each plantation. During the summer, you can ride the golf course cart paths in the evening.