Directions Take the F.J. Torras Causeway to St. Simons Island. Stay in the Left lane coming off of Causeway and veer onto Sea Island Causeway. Take a Left at the 3rd light, Frederica Road. Pass Bennie’s Red Barn and take the 2nd exit off the Frederica roundabout. Marsh’s Edge Lane is the first right off the roundabout. Go about 1/2 mile and at the gate, dial for Front Desk Reception.