Grayton Beach State Park, the segment's beginning, is one of the few places in the world that features coastal dune lakes. A sliver of sand is all the separates the fresh water of Western Lake from the Gulf of Mexico. Next stop is Panama City Beach, popular with vacationers and home to one of the largest Spring Break gatherings in the state. If you plan on staying at a motel be sure to get reservations in advance, as spring and summer are the busy seasons. Leaving the "big city" behind, you'll enter into a more remote environment where your new companions are dolphins and an occasional fishing boat or jet fighter from Tyndall Air Force Base. This stretch (25 miles) offers incredible views of coastal dunes shaped by years of storms. St. Joseph Peninsula State Park is a fitting end to this saltwater section, offering a true coastal wilderness experience.