The Friends of Sebastian Inlet State Park is a non-profit citizen support organization comprised of individuals and groups dedicated to supporting Sebastian Inlet State Park. Their role is one of support for the park and the two museums located within it.
Together with the Florida Park Service, FSISP works to enhance, protect, and promote Sebastian Inlet State Park and its sister parks.
The FSISP have improved the park by funding projects like the observation deck at McLarty Museum, picnic tables throughout the park, concerts, boardwalk improvements, and a gazebo overlooking the jetty and beach.
Improvements are ongoing as FSISP works closely with park management to provide the public with the best park experience possible. Funds are generated through two FSISP-operated gift shops in the park museums.