Econfina River State Park is a 3,377 acres Florida State Park, located on the Gulf of Mexico at the mouth of the Econfina River. The address is 4384 Econfina River Road, Lamont, Florida, United States.EcologyThe park contains pine flatwoods, oak/palm forests, and broad expanses of salt marsh dotted with pine islands.Recreational ActivitiesThe park has such amenities as birding, boating, canoeing, fishing, hiking, horse trails, kayaking and picnicking areas. Concessions are also available.Admission and HoursThere is no entrance charge. Florida state parks are open between 8 a.m. and sundown every day of the year (including holidays).