Estuary Behind Dunes

The estuary behind Sand Beach provides habitat for much wildlife in the park.

NPS Photo

Quick Facts

Amenities

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Beach/Water Access

Leading from the Beehive towards Sand Beach, a freshwater stream approaches the beach to meet the ocean. Areas like these ones are called estuaries: where freshwater from rivers and streams mix with saltwater as it meets the ocean. When water mixes like this (freshwater + saltwater), it is sometimes known as “brackish” water. Estuarine waters are usually protected from the harsh waves of the ocean by beaches, barrier islands, or even reefs. This one is protected by Sand Beach and Old Soaker beyond it.

Estuaries are important natural places. They are incredibly productive environments, giving life and habitat to many different animals. Many species of fish rely on estuaries for habitat: where they live, eat, and have offspring. Because so many fish call estuaries home, these locations also become useful areas for birds that eat the fish. Estuaries are especially important to birds during migration season when they need a place to stop, rest, and eat.

Estuaries are very delicate, so be gentle as you explore this area. Keep your eye out for fish, grasses, and birds – all common to estuarine ecosystems.