Sanibel Island is a popular place for boating, playing golf, shopping, fishing, and biking. There are plenty of places to rent a bike and plenty of trails for biking. We biked along many trails and enjoyed seeing a few alligators at Bailey's Tract. We spent most of the day biking around Sanibel Island, but enjoyed a few beach stops, a picnic lunch and ice cream at Sanibel's Best Homemade ice cream at the end of the day.