South of Emerald Coast Parkway on Scenic Highway 30-A lies the heart of this coastal hideaway. Dune Allen is an established community that surrounds Stallworth Lake, one of 17 coastal dune lakes, which are unique to this part of the world. The area’s 17 coastal dune lakes are so rare that they are only found in Beaches of South Walton and remote portions of Africa and Australia. These waterways have the highest occurrences of rare wildlife species in the state, some of which are found no where else in the world. Dune Allen's other coastal dune lake, Oyster Lake, is actually shaped like an oyster shell, and was once filled with oysters. Families who visited Dune Allen for holidays would picnic on its shores, and if the water in the lake was high, the men would dig a trench from the lake to the gulf to lower the water level making it easier to catch fish and gather oysters.