The waters of Gulf Islands National Seashore are home to many species of fish, shrimp and crabs. Daily tides blend nutrient-rich bayous and estuaries with the Gulf of Mexico, creating an ideal habitat for a wide variety of undersea creatures.

Visitors interested in fishing in the Mississippi District and the Florida District have many options, from spending a lazy afternoon fishing on the bayou to battling spirited gamefish offshore or learning the traditional art of throwing a cast net on a ranger-led program.