Florida Keys National Marine Sanctuary wilderness guide
National Marine Sanctuary · FL

Florida Keys National Marine Sanctuary

Florida Keys National Marine Sanctuary protects a diverse and colorful underwater expanse, offering unparalleled opportunities for diving, snorkeling, and maritime exploration.

National Marine Sanctuary6,000,000

Designation

National Marine Sanctuary

Total Wilderness Area

6,000,000

Elevation / Terrain

Diverse Wilderness

Field Editorial Guide

About Florida Keys National Marine Sanctuary

Florida Keys National Marine Sanctuary protects a diverse and colorful underwater expanse, offering unparalleled opportunities for diving, snorkeling, and maritime exploration.

Wilderness Landscape & Natural Heritage

Located off the southern coast of Florida, the Florida Keys National Marine Sanctuary encompasses 2,900 square nautical miles of waters surrounding the Florida Keys. This sanctuary is home to the only living coral barrier reef in the continental United States, making it a hotspot for biodiversity. The area harbors an array of marine species, including sea turtles, dolphins, and countless fish species, as well as rare and threatened species. Established to protect and preserve the region's fragile marine ecosystems, the sanctuary offers a rich history, with evidence of human activity dating back thousands of years. Visitors can explore shipwrecks, some of which are historic, scattered throughout the sanctuary and experience a wide array of recreational activities. Key recreational opportunities include scuba diving, snorkeling, fishing, and boating. The area’s clear waters and abundant marine life attract visitors from around the world, drawn to its turquoise seas and vibrant coral gardens.

Field Guide · National Marine Sanctuary
Adventure Destinations

Notable Destinations Near Florida Keys National Marine Sanctuary

Scenic viewpoints, outdoor landmarks, and notable points of interest within 60 miles.

Key Wilderness Highlights

✦ The coral barrier reef, the third-largest in the world, offers breathtaking underwater exploration.✦ Exploring popular shipwrecks like the USS Spiegel Grove and the Vandenberg.✦ Diverse marine life viewing, including encounters with sea turtles and rays.✦ Fishing in designated areas offering world-class opportunities for sport anglers.
Wilderness Recreation

Outdoor Adventures in Florida Keys National Marine Sanctuary

Explore curated guides for top outdoor sports, trail networks, and wilderness activities.

The Ranger Station

Visitor Logistics & Essential Planning

Everything you need to know about entrance passes, seasons, visitor centers, road transit, and wildlife safety in Florida Keys National Marine Sanctuary.

Passes & Fees

Entrance Requirements & Interagency Passes

Entry is free, but some activities may require special permits.

Wilderness Checklist

Carry paper topographic map & compass in remote zones.
Store all food and scented items in approved bear canisters.
Check wildfire / smoke advisories before backcountry departure.
Pack out everything you pack in (Leave No Trace).
Adventure Basecamps

Gateway Towns Near Florida Keys National Marine Sanctuary

Stay, dine, and gear up in these mountain towns and scenic basecamps surrounding the park.

Stock Island, Florida
⌖ 12.52 miles
Gateway Basecamp

Stock Island, Florida

Stock Island, Florida offers an authentic Keys adventure with kayaking, fishing, paddleboarding, and biking. Just minutes from Key West, this island is a hub for wildlife encounters and laid-back watersports in a rich tropical setting.

Winter and Early Spring
Explore Town
Key West, Florida
⌖ 13.22 miles
Gateway Basecamp

Key West, Florida

Key West, Florida, is a tropical oasis perfect for aqua adventures, from snorkeling vibrant reefs to kayaking through mangroves. Enjoy year-round sunshine, lively culture, and historic charm.

Winter and Spring
Explore Town
Big Coppitt Key, Florida
⌖ 14.00 miles
Gateway Basecamp

Big Coppitt Key, Florida

Big Coppitt Key offers a tranquil island vibe with top-notch kayaking, fishing, and snorkeling. This lesser-known Florida Keys gem is perfect for wildlife lovers and outdoor adventurers seeking calm waters and scenic escapes.

Winter through Spring
Explore Town
Sugarloaf Key, Florida
⌖ 17.26 miles
Gateway Basecamp

Sugarloaf Key, Florida

Sugarloaf Key in Florida offers a peaceful island escape where kayaking, fishing, bird watching, and snorkeling come together amid serene mangroves and coastal waters. Perfect for nature lovers craving quiet adventure.

Winter to Spring
Explore Town
Sugarloaf Shores, Florida
⌖ 17.81 miles
Gateway Basecamp

Sugarloaf Shores, Florida

Sugarloaf Shores, Florida, is a peaceful coastal retreat perfect for kayaking, fishing, paddleboarding, and bird watching. Its quiet beaches and mangrove estuaries offer a serene escape for outdoor lovers seeking nature and adventure.

Winter and Early Spring
Explore Town
Cudjoe Key, Florida
⌖ 21.53 miles
Gateway Basecamp

Cudjoe Key, Florida

Cudjoe Key offers a tranquil escape in the Florida Keys with thrilling water activities like kayaking, snorkeling, and fishing. Visitors can enjoy wildlife, cycling, and serene island atmospheres.

Winter and Spring
Explore Town
Expert-Led Wilderness Expeditions

Guided Experiences in Florida Keys National Marine Sanctuary

Explore scenic backcountry routes and epic wilderness adventures with certified local mountain guides, naturalists, and outfitters.

Two Hours Through Geiger Key’s Mangrove Labyrinth
ADVEXPEDITION
Key West, Florida
KayakADV Bookable

Two Hours Through Geiger Key’s Mangrove Labyrinth

A two-hour, self-paced kayak rental from The Paddle Hut at Geiger Key that threads silent mangrove tunnels and offers close encounters with sting rays, sea turtles, and colorful reef fish.

KayakPT2HCertified Outfitter
Bookable OnlineBook Trip