According to Wikipedia, "Honeymoon Island State Park is a Florida State Park located on Honeymoon Island, a barrier island across St. Joseph's Sound from Palm Harbor, Ozona, and Crystal Beach. The park is 385 acres (1.6 km2) in land area with 2,400 acres (10 km2) submerged and 4 miles (6 km) of beach. It lies at the western end of Causeway Boulevard, which becomes Curlew Road east of Alternate US 19. The address is 1 Causeway Blvd."
It is also home to many hiking trails. click on the individual trail listings for more detailed information about each one.
Located at the extreme west end of State Road 586.
http://www.tripleblaze.com/trail.php?c=3&i=3269