• Beach walkway to white sandy beach and bluegreen waters

    Gulf Islands

    National Seashore FL,MS

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  • Partial Closure on Horn Island

    Small portion of Horn Island, Mississippi, closed to entry due to discovery of asbestos and possible other bio hazards. Click on more for map and press release. More »

Seagrass Beds

Within the Seashore boundaries are thriving seagrass beds. Threats to these important resources include: degraded water quality, dredge and fill projects, physical impacts from boat groundings and boat propellers and anchors. Please use caution when fishing and do not walk through seagrass beds. Please do not anchor your boat in these areas.

Seagrasses are a valuable part of the marine environment and support a million-dollar fishery. Most commercial and recreationally important fish, crabs and shrimp spend some time of their lives in seagrass beds. Seagrass beds help filter pollutants from the water, contribute to water clarity by trapping suspended sediments and provide food and shelter for juvenile fish, shrimp and crabs. Manatees, green sea turtles, and migratory birds depend on seagrass beds for foraging.

Did You Know?

15-inch Rodman cannon has a black barrel and maroon colored carriage.  It is located on Fort Massachusetts at Gulf Islands N S.

Two 19th-century 15-inch Rodman cannons are at Gulf Islands National Seashore. The bottle-shaped barrels were cooled from the inside out at the foundry to make them stronger than earlier cannon.