The 7,271-acre Collier-Seminole State Park lies partly within the great mangrove swamp of southern Florida, one of the largest mangrove swamps in the world. A wide variety of wildlife, including several imperiled species, inhabits this unusual blend of temperate and tropical native plant communities. Collier-Seminole State Park features vegetation and wildlife typical of Florida’s Everglades. Although rare elsewhere, the park covers one of three original stands of royal palm trees in Florida, coexisting with large areas of mangrove swamp. The park is the site of a National Historic Mechanical Engineering Landmark, the last existing Bay City Walking Dredge. Built in 1924, it was used to build the Tamiami Trail Highway (U.S. 41) through the Everglades and Big Cypress Swamp, linking Tampa and Miami and opening southwest Florida to travelers. Campground sites have electricity, water, a grill and picnic table. The restrooms have hot showers and one has a laundry facility. A centralized dump station is available for RV campers. Park programs are offered from December to March. Park rangers present programs on a variety of topics about the park’s plants, animals and history. Visit our website for park programs, or ask one of the rangers. Visitors can experience this park’s remarkable wilderness on several trails. The Blackwater River originates in the park and meanders several miles through the mangroves to Blackwater Bay and the Ten Thousand Islands. The park has canoe rentals along with a boat ramp that provides access to the Blackwater River. Other trails offer opportunities for bicycling, hiking and nature observation.