Long Key

Long Key State Park preserves 965 acres of coastal habitats on Long Key, one of the middle Florida Keys, at Mile Marker 67.5 approximately 17 miles northeast of Marathon. The park protects a unique mixture of tropical hammock, coastal strand, and mangrove forest that characterizes the Keys before development transformed most of the archipelago. This barrier island provides refuge for several rare and endangered native tropical and coastal plant species found nowhere else in the continental United States. Long Key occupies an important position in Florida Keys history as the former site of Henry Flagler's exclusive Long Key Fishing Camp, a luxury destination that attracted celebrities, statesmen, and the world's premier saltwater anglers in the early 20th century. The Labor Day Hurricane of 1935 destroyed the fishing camp and much of the key, but the natural communities have recovered to create one of the finest examples of undeveloped Keys habitat. Today, the park offers camping, paddling, and nature trails that showcase the distinctive ecosystems of the Florida Keys.

Long Key State Park supports diverse wildlife communities adapted to the tropical and marine environments of the Florida Keys. The mangrove forests serve as critical nursery habitat for numerous fish species, with the intricate web of red mangrove prop roots sheltering juvenile snapper, tarpon, and bonefish before they mature to open waters. Wading birds patrol the mangrove margins, with great white herons, great blue herons, and roseate spoonbills among the most spectacular species observed. The tropical hammock hosts white-crowned pigeons, an endangered species that nests in the Keys and flies to mainland Florida to feed. Other notable birds include ospreys, brown pelicans, and various species of sandpipers along the shoreline. The surrounding waters support manatees during their seasonal movements through the Keys, while bottlenose dolphins frequently appear in nearshore areas. Sea turtles including loggerheads and green turtles utilize the adjacent seagrass beds for foraging. The flats attract recreational anglers pursuing bonefish, permit, and tarpon in the shallow, clear waters.

The plant communities of Long Key State Park exemplify the tropical botanical character of the Florida Keys. Mangrove forests comprise a significant portion of the park, with red mangroves lining the waterfront, their distinctive arching prop roots extending into the shallows. Black mangroves occupy slightly higher elevations, identifiable by the finger-like pneumatophores projecting from the soil to capture oxygen. White mangroves, the least salt-tolerant of the three, grow farthest inland. The tropical rockland hammock contains species with Caribbean origins, including gumbo-limbo, poisonwood, pigeon plum, and Jamaica dogwood. These trees grow directly from the exposed Key Largo limestone with minimal soil accumulation. The coastal strand supports sea grape, bay cedar, and various salt-tolerant shrubs adapted to the spray zone. The tidal rock barrens traversed by the Golden Orb Trail present an otherworldly landscape where plants grow from sun-bleached coral fragments with virtually no soil. Native orchids, bromeliads, and wild cotton add to the botanical diversity of this uniquely tropical Florida habitat.

Long Key consists entirely of Key Largo Limestone, the fossilized remains of an ancient coral reef that formed approximately 125,000 years ago during a warmer interglacial period when sea levels were significantly higher than today. This limestone is a white to light gray, moderately hard rock composed of coral heads embedded in a matrix of sand-sized calcite particles. Unlike the oolitic Miami Limestone that underlies the lower Keys, the Key Largo formation clearly displays the structure of the original reef, with identifiable coral species including star coral and brain corals visible in exposed surfaces. The porous nature of the limestone creates unique hydrology, with rainwater percolating through the rock to form thin freshwater lenses floating atop the underlying saltwater. This limited freshwater availability challenges terrestrial plant and animal life. The tidal rock barrens represent areas where the limestone surface is directly exposed, swept clean of soil by hurricanes and covered only by scattered pieces of dead coral. The elevation of Long Key barely exceeds sea level, making it vulnerable to storm surge and long-term sea level rise.

Long Key experiences a tropical maritime climate characterized by warm temperatures year-round, with less seasonal variation than mainland Florida. Summer temperatures typically range from the low 80s to low 90s Fahrenheit, moderated by the surrounding ocean waters and persistent sea breezes. Winter temperatures remain mild, with highs usually in the 70s and lows rarely dropping below 60 degrees. The wet season extends from May through October, when brief but intense afternoon thunderstorms provide the majority of annual rainfall averaging approximately 40 inches. The dry season from November through April brings lower humidity and more consistent sunshine, considered the optimal time for visiting. The Florida Keys lie within the Atlantic hurricane belt, and Long Key's low elevation and exposed position make it particularly vulnerable to tropical storms and hurricanes. The Labor Day Hurricane of 1935, one of only four Category 5 storms to strike the United States, devastated Long Key and the surrounding region. Water temperatures remain warm year-round, ranging from the upper 60s in winter to the mid-80s in summer.

Long Key has been utilized by humans for centuries, with the Calusa people and their predecessors navigating the Florida Keys and exploiting marine resources long before European contact. Spanish explorers charted the Keys beginning in the early 1500s, and wrecking, fishing, and salvaging sustained small communities through the colonial period. The modern history of Long Key began with Henry Flagler's Florida East Coast Railway, which reached Key West in 1912 after an engineering marvel that connected the islands with bridges and causeways. Flagler established the Long Key Fishing Camp along the railway, creating an exclusive resort that attracted wealthy anglers, celebrities, and prominent figures including author Zane Grey, who penned tales of his fishing adventures on the flats. U.S. presidents and famous sportsmen frequented the camp, which became synonymous with the golden age of saltwater fishing. The Labor Day Hurricane of 1935 struck with catastrophic force, destroying the fishing camp and killing hundreds of people throughout the Keys. The camp was never rebuilt, and the land eventually became the state park.

Following the destruction of the Long Key Fishing Camp in the 1935 hurricane, the land remained largely undeveloped as the Keys recovered from the disaster. The Florida Board of Parks and Historic Memorials acquired the property in 1969, establishing Long Key State Recreation Area to preserve the natural communities and provide public access to the waterfront. The park was subsequently redesignated as Long Key State Park. Development of facilities proceeded carefully to maintain the park's natural character, with the campground, nature trails, and canoe trail constructed to showcase rather than obscure the native environment. The historic connection to the Long Key Fishing Camp is interpreted through park programming, though no original structures survived the hurricane. The park has periodically sustained damage from subsequent hurricanes including Georges in 1998 and Irma in 2017, requiring extensive recovery efforts. Despite these challenges, the natural communities have demonstrated remarkable resilience, regenerating after each storm event. Today, Long Key State Park stands as one of the premier examples of preserved Keys habitat accessible to the public.

Long Key State Park features the Golden Orb Trail, a 1.2-mile nature trail named after the golden orb weaver spiders common in the Keys. This trail leads visitors through five distinct natural communities, beginning in mangrove forest before ascending through tropical rockland hammock to the tidal rock barren. An observation tower along the route provides panoramic views across the island and surrounding waters. The exposed Key Largo limestone and scattered coral fragments of the rock barren create an otherworldly landscape unlike anything else in Florida. The shorter Layton Trail offers a 15-minute walk on the bay side of the park. The Long Key Lakes Canoe Trail provides a 1.5-mile paddling route through sheltered mangrove-lined lagoons ideal for beginners and wildlife observation. Fishing remains exceptionally popular, with the flats surrounding Long Key renowned for bonefish, permit, and tarpon. Snorkeling in the clear waters reveals colorful tropical fish and coral formations. The campground provides one of the few waterfront camping opportunities in the Florida Keys.

Long Key State Park offers comprehensive facilities for day visitors and campers alike. The campground features approximately 60 sites situated on the Atlantic oceanfront and Florida Bay waterfront, providing spectacular sunrise and sunset views. Sites accommodate tents and RVs with electric hookups available, though the sites are best suited for smaller units due to the natural setting. Modern restrooms with hot showers serve campers, and a dump station is available for RVs. Day-use facilities include picnic pavilions, a small swimming beach, and kayak/canoe launch areas. Visitors can rent kayaks and canoes on-site or bring their own watercraft. The park is located on US Highway 1 at Mile Marker 67.5, approximately 17 miles northeast of Marathon and 60 miles from Key West. The entrance fee is typically $5-6 per vehicle. Park hours extend from 8 AM until sunset for day use, with the campground maintaining 24-hour access. Reservations are strongly recommended for camping, particularly during the winter season when the Keys attract seasonal visitors and the mild weather draws campers south.

Long Key State Park plays a vital role in preserving the distinctive ecosystems of the Florida Keys, protecting habitats that have largely disappeared elsewhere in the archipelago due to development. The park's mangrove forests provide critical nursery habitat for commercially and recreationally important fish species, contributing to the broader marine ecosystem of Florida Bay and the Atlantic reef tract. Protection of the tropical hammock safeguards rare plant species and provides habitat for the endangered white-crowned pigeon. The park participates in monitoring programs for sea turtles that may nest on its beaches and for the manatees that seasonally use Keys waters. Climate change poses significant long-term challenges, with sea level rise threatening to inundate the low-lying key and increasing storm intensity damaging vegetation. Park management focuses on maintaining natural resilience by protecting intact ecosystems and controlling invasive species. After Hurricane Irma in 2017, extensive restoration efforts addressed damage to facilities and natural areas. Environmental education programs interpret the unique ecology and history of the Florida Keys, building appreciation for this irreplaceable subtropical environment.