Open unless posted otherwise
Things to Do:
This island is a designated wilderness zone, accessible by private boat only, which makes it ideal for wildlife viewing, especially bird watching. Visitors may primitive camp on the island; however groups of 10 or more must obtain a permit prior to their arrival. Visit our pets page to learn about visiting Gulf Islands National Seashore areas with your pets.
There is no entrance fee for Mississippi Areas of the national seashore.
There are no facilities or services, including lifeguards, on Petit Bois Island.
Visiting Wilderness Areas:
In 1978 Congress designated Petit Bois and Horn Islands - among the few undeveloped barrier isalnds on the Gulf Coast - as wilderness areas. Uncommon species of birds, animals, and marine life are protected here. These areas also preserve the land's natural conditions and provide opportunities for solitude and primitive recreation; benefiting generations to come.
Before visiting Petit Bois and Horn Islands, ask a ranger about wilderness area regulations and the difficulties of visiting places without water, shelter, facilities, or communication. Park rangers can help you plan. Please practice Leave No Trace principles.
Horn Island is only accessible via private boat. If traveling in your private vessel consult navigational charts. Visit our Getting Around page for information on hiring a licensed private charter boat.