The inlet is a vital migratory corridor for juvenile fish moving between the ocean and the sheltered lagoon nursery.
The park's location is the epicenter of the 'Treasure Coast,' named for the ships of the 1715 Spanish Plate Fleet that sank during a hurricane.
The 'Monster Hole' surf break is caused by unique bathymetry that creates a consistent wave pattern even when ocean swells are small.
The park features two museums: the McLarty Treasure Museum and the Sebastian Fishing Museum.
It is a renowned location for night-time fishing for snook, particularly during the summer spawning season.
Sebastian Inlet State Park serves as the premier saltwater fishing destination on Florida's East Coast, situated at the junction of the Atlantic Ocean and the Indian River Lagoon. The park features a man-made inlet dredged to improve water circulation, which creates strong tidal currents attractive to game fish. Visitors have access to three miles of beaches spanning both Brevard and Indian River counties. The park hosts the McLarty Treasure Museum, detailing the 1715 Spanish Plate Fleet shipwreck site located just offshore. Surfers frequent the 'First Peak' and 'Monster Hole' breaks, recognized as some of the most consistent surf spots in the state. Birdwatchers utilize the diverse habitats, ranging from coastal dunes to mangroves, to spot ospreys, pelicans, and migrating raptors. Campground facilities provide 51 sites equipped with water and electrical hookups for recreational vehicles and tents. The park remains a primary site for sea turtle nesting during summer months, necessitating strict lighting and activity protocols.
The catwalk underneath the Sebastian Inlet Bridge offers unobstructed views of the surf and the inlet convergence.
Bring polarized sunglasses to better sight fish in the clear, shallow water of the lagoon.
Check the tide charts before arriving, as fishing activity and surfing quality change drastically with incoming and outgoing tides.
If you plan to surf, observe the local etiquette regarding right-of-way, as the 'First Peak' break can become crowded.
Do not attempt to swim in the inlet channel itself, as the tidal currents are extremely dangerous and can pull even strong swimmers offshore.
Open daily year-round, though beach access may be restricted during severe weather or high-tide erosion events.
Strict 'leave no trace' policies apply; sea turtle nesting protection mandates no bright lights on the beach at night during nesting season.