Dagny Johnson Key Largo Hammock Botanical State Park

Located in Key Largo, Florida, Dagny Johnson Key Largo Hammock Botanical State Park protects more than 2,400 acres of tropical hardwood hammock and is widely recognized as one of the largest remaining tracts of this habitat in the continental United States. Visitors come here for quiet walks, birdwatching, native plants, and a chance to experience a less-developed side of the Upper Keys. Trail access, hours, and fees may change, so it is smart to confirm current details before your visit.

Key Features of Dagny Johnson Key Largo Hammock Botanical State Park

Extensive Hiking & Nature Trails
- The park offers roughly 6 miles of paved and natural-surface trails for self-guided exploration.
- Interpretive signs and trail information help introduce visitors to the area’s ecology, history, and conservation story.
Rare Plants & Tropical Hardwood Hammock Habitat
- The preserve is known for its exceptional botanical diversity, including more than 80 protected plant species.
- Native vegetation includes mahogany, gumbo limbo, wild tamarind, strangler fig, and other plants associated with tropical hardwood hammock habitat. Rare wildlife in the area includes species such as the Key Largo woodrat and Key Largo cotton mouse, while notable plants include the Key tree cactus.
Birdwatching & Wildlife Spotting
- The park is part of the Great Florida Birding and Wildlife Trail and can be rewarding for birders, especially during migration seasons.
- Visitors may spot white-crowned pigeons, woodpeckers, owls, warblers, butterflies, deer, and, in wet areas, the occasional American crocodile.
Historic & Environmental Significance
- The land was once targeted for major development, but conservation advocates, including Dagny Johnson, helped protect it.
- Today, the park remains an important refuge for rare species and a valuable natural area in the Florida Keys.

Recreational Activities & Experiences

Hiking & Nature Walks – Explore shaded trails through one of the Keys’ most important natural preserves.
Wildlife Watching – Keep an eye out for birds, butterflies, and other native species along the trail system.
Photography & Nature Study – The park is a great place to photograph tropical plants, forest textures, and seasonal wildlife activity.
Peaceful Sightseeing – This is a good stop for travelers seeking a quieter, more natural experience in Key Largo.

Map & Location

Nearby Attractions

Combine your visit to Dagny Johnson Key Largo Hammock Botanical State Park with these nearby destinations:

John Pennekamp Coral Reef State Park (about 5 miles away) – A signature Key Largo park known for snorkeling, diving, kayaking, and glass-bottom boat tours.
Florida Keys Wild Bird Rehabilitation Center (about 10 miles away in Tavernier) – A worthwhile stop to see rescued native birds and learn about local wildlife care.
Harry Harris Park (about 12 miles away in Tavernier) – A family-friendly county park with a protected beach area, playground, and boat access.
Windley Key Fossil Reef Geological State Park (about 15 miles away) – A fascinating geological site featuring old quarry cuts, trails, and interpretive exhibits.
Islamorada’s Theater of the Sea (about 20 miles away) – A longtime Florida Keys marine attraction with animal programs and encounters.

Amenities & Facilities

Trailhead Parking – On-site parking is typically available for day visitors.
Paved & Natural-Surface Trails – Visitors can choose between an easier paved route and more rustic trails through the hammock.
Interpretive Information – Trail maps or educational signage may be available near the entrance.
Limited Day-Use Facilities – This is a nature-focused preserve, so amenities may be more limited than at larger destination parks.
Plan Ahead – Water, shade breaks, and restroom access may be limited depending on current operations and conditions.

Accessibility

Dagny Johnson Key Largo Hammock Botanical State Park can be enjoyable for a wide range of visitors, but conditions are more natural than at fully built-out attractions:

Paved Access Near the Entrance – A paved route offers an easier experience than the rougher interior trails.
Natural Conditions Apply – Trail surfaces, roots, weather, and maintenance can affect accessibility from day to day.
Service Animals Allowed – In accordance with ADA requirements and park rules.

Tips for Visiting the Botanical State Park

Wear Comfortable Walking Shoes – Some trails are uneven, sandy, or rocky in places.
Bring Water, Bug Spray & Sun Protection – Heat, humidity, insects, and sun exposure can be significant in the Keys.
Visit Early for Wildlife Viewing – Morning hours are often best for bird activity and more comfortable temperatures.
Check Current Conditions Before You Go – Hours, fees, trail access, and weather-related impacts may vary by date.
Stay on Marked Trails – The park protects rare plants and sensitive wildlife habitat, so avoid wandering off trail.
Know What Kind of Park This Is – This preserve is best for walking, birding, and nature appreciation rather than beach or water activities.

Why Visit Dagny Johnson Key Largo Hammock Botanical State Park?

Dagny Johnson Key Largo Hammock Botanical State Park offers a distinctive look at the natural side of the Florida Keys. With rare plants, protected wildlife habitat, and scenic trails through a remarkable tropical hardwood hammock, it is an excellent stop for hikers, birders, photographers, and travelers who want more than just beaches and boat tours.

Official park information: Florida State Parks – Dagny Johnson Key Largo Hammock Botanical State Park