Flat Island Preserve's canoe launch is accessed via a long boardwalk off the south section of the 4. 5-mile loop trail and provides access to a 2,300-acre conservation area with marshes, hardwood swamps, and upland hammocks.

Four canoes are available for rent through the Lake County Water Authority (permit required two business days in advance), and the launch provides paddling access to Magnolia Island, which offers primitive camping accessible only by canoe.

The preserve also features hiking trails, a parking area with restroom facilities, and primitive camping options on the main property.