Closed
Due to inclement weather, the National Aquarium will be closed on Sunday, January 25, 2026.
Due to inclement weather, the National Aquarium will be closed on Sunday, January 25, 2026.
Harbor Wetland is a recreation of the salt marsh habitat that dominated the Inner Harbor's landscape hundreds of years ago.
Freshen up your home screen with our one-of-a-kind wallpaper featuring the native cordgrasses planted on our Harbor Wetland exhibit.
Excess nitrogen from polluted stormwater runoff can fuel algal and bacterial blooms that can harm wildlife. The roots of the cordgrass planted on Harbor Wetland absorb excess nitrogen directly from the water in the Inner Harbor. The reintroduction of plants like cordgrass provides vital habitat for native species.