Gulf of Mexico numerous bays and smaller inlets. A number of rivers empty into the gulf, most notably the Mississippi River and Rio Grande in the northern gulf, and the Grijalva and Usumacinta rivers in the southern gulf. The land that forms the gulf's coast, including many long, narrow barrier islands, is almost uniformly low-lying and is characterized by marshes and swamps as well as stretches of sandy beach. The Gulf of Mexico is an excellent example of a passive margin. The continental shelf is quite wide at most points along the coast, most notably at the Florida and Yucatán Peninsulas. The shelf
Gulf State Park say critics misunderstand the plans. The park includes of white sand beaches, a modern campground, and nature trails, plus both fresh and saltwater fishing and swimming. 20 cabins, 11 cottages, and 496 campsites for both RVs and tents are available within the park's . An 18-hole golf course includes a pro shop and snack bar. A concessionaire operates a zip-line course which opened in 2013 and offers kayak and paddleboard rentals for use on Lake Shelby. Gulf State Park Gulf State Park is a public recreation area on the Gulf of Mexico in the city of Gulf Shores in southern