Fort Frederica National Monument  
Route 9, Box 286C
St. Simons Island, GA 31522
912-638-3639

Established in 1736 by James Oglethorpe to protect the southern boundary of his new colony of Georgia, this historic national site includes remnants of a tabby fortress the British built in the 1730s as a bulwark against Spanish invaders from Florida. Hiking and nature trails are on site and historical tours are available.