Experience a lovely, natural habitat with areas of thick overhead tree canopy, laden with moss. If you'd rather not walk through the park, then pedal. It's a 3-mile ride into the park from the entrance at Atlantic Avenue to the fort in the rear of the park, perched above the Cumberland Sound. Plus there are wooded bike riding trails within the park for mountain bikes. The park has a very nice playground area with picnic tables and barbeques, shaded by tree canopy.
Fort Clinch has lots of beachfront as noted above, and is located across from Cumberland Island.
Ask about Florida's saltwater fishing regulations from the Park Ranger station when you enter the Park. The variety of fish you may catch in the waters around the fort include flounder, sheepshead, whiting, speckled trout, striped bass, redfish, drum, and pompano. The most popular bait of choice for fishing in the local waters around Amelia Island is shrimp. You can purchase it frozen or fresh from local bait shops. The re-enactments take place the first weekend of every month.