Barrier islands protect the Florida mainland from the harsh effects of storms and provide habitats for shorebirds and other coastal animals.

The wide, white, sandy beaches and the rolling sand dunes covered with sea oats make this a pristine oasis along the rapidly developing panhandle.

The beach, which provides excellent opportunities for swimming and sunbathing, is the focal point for public use of the park.

This mouse is one of the North America's rarest mammals and only currently exists in two places on earth, both of which are located on Perdido Key.

The population of this mouse can vary greatly depending on the time of year and recent weather conditions, as well as the presence of house cats.