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Key Largo Attractions Guide

From world-renowned coral reef diving and historic steamboat cruises to botanical hammock trails and waterfront sunset tiki bars, Key Largo offers an unmatched spectrum of sub-tropical excursions along the Overseas Highway.

Interactive Activity Filter

Mile Marker 107 to MM 90.5 Attraction Navigator

Upper Keys Directory

Showing 6 verified attractions MM 106.5 • MM 90.5

Researched & Hydrographically Verified by Capt. Marcus Vance USCG Master 100-Ton Captain • 24 Yrs Keys Resident

USCG Master Near Coastal • Monroe County Marine Dispatch • Verified October 2026 • Editorial Standards

Navigating the Island of Key Largo: The Mile Marker Geographical Blueprint

Key Largo is the largest and northernmost island of the Florida Keys archipelago. Anchored by the 18-mile stretch of US Route 1 between the Jewfish Creek Bridge (MM 107.5) and Tavernier Creek (MM 91.0), the island serves as the gateway to the subtropics. Visitors entering via Card Sound Road or the 18-Mile Stretch experience an immediate transition from South Florida highways to pristine coastal mangrove waterways, world-class dive charters, and historic roadside landmarks along the scenic highway corridor.

Every destination in Key Largo is located using two essential coordinates: its Mile Marker (MM) and its side of the highway. 'Oceanside' refers to businesses, marinas, and beaches positioned east toward the Atlantic Ocean and the living coral barrier reef. 'Bayside' refers to destinations west toward Florida Bay and the Everglades backcountry, famous for mirror-calm waters, shallow flats fly fishing, and celebrated sunset celebrations along waterfront tiki docks.

Geographical Axis: MM 107.5 to MM 91.0 • Jewfish Creek to Tavernier Creek

Top Key Largo Attractions by Mile Marker (North to South)

Monroe County Index

Mile Marker	Highway Side	Attraction Name	Category	Visitor Highlight
MM 107.5	Bayside	Dagny Johnson Key Largo Hammock Botanical State Park	Nature & Hiking	Over 6 miles of paved nature trails through one of the largest West Indian tropical hardwood hammocks in the United States.
MM 102.5	Oceanside	John Pennekamp Coral Reef State Park	Marine & Snorkel	America's first undersea park featuring glass-bottom boat tours, living coral reefs, and the historic bronze Christ of the Abyss.
MM 100.0	Oceanside	Historic African Queen Canal Cruise	Heritage & Boating	Board the authentic 1912 steam-powered vessel featured in the iconic 1951 movie starring Humphrey Bogart and Katharine Hepburn.
MM 99.5	Bayside	Caribbean Club Waterfront Sunset Lounge	Dining & Nightlife	Historic 1938 watering hole and original filming location for Bogart's classic film 'Key Largo' with live outdoor music on the bay.
MM 94.8	Bayside	Florida Keys Wild Bird Rehabilitation Center	Wildlife Sanctuary	Boardwalk sanctuary dedicated to rescuing, treating, and releasing injured native pelicans, herons, osprey, and raptors.
MM 93.6	Bayside	Snook's Bayside Restaurant & Grand Tiki Bar	Waterfront Dining	Iconic Florida Keys open-air thatched tiki dining with nightly sunset celebrations, fresh blackened mahi-mahi, and rum cocktails.
MM 92.5	Oceanside	Harry Harris Beach & Oceanfront Park	Beaches & Swimming	Man-made protected tidal lagoon with soft sand, coral breakwater, shaded picnic pavilions, children's playground, and public boat ramp.
MM 91.8	Bayside	Tavernier Creek Marina & Sportfishing Departure	Boating & Marina	High-volume marina and fuel dock bridging Key Largo and Plantation Key, connecting Florida Bay backcountry to Atlantic bluewater.

Mile Marker Registry Key Largo Corridor Span: MM 107.5 to MM 91.0

FDOT District 6 Survey

Book Top-Rated Key Largo Tours, Charters & Activities

Explore customer-rated boat charters, snorkeling packages, sunset catamaran sailings, and jet ski tours with instant mobile ticket delivery and verified traveler reviews.

Explore Key Largo Tours

Historic African Queen Canal Cruise (MM 100)

Catering to movie buffs and maritime historians alike, the original 1912 British steam vessel African Queen operates daily 90-minute cruises through Key Largo harbor channels and ocean waterways. Fully restored with an active steam reciprocating engine, passenger cruises include history narration detailing the 1951 film production with Humphrey Bogart and Katharine Hepburn, departing directly from Marina Del Mar docks.

Departs Marina Del Mar (MM 100) • Daily Departures • Advance Booking Required

Florida Keys Wild Bird Rehabilitation Center (MM 94.8)

The Laura Quinn Wild Bird Sanctuary provides permanent natural habitat for injured, non-releasable coastal birds. A wooden boardwalk winding through mangrove forest allows visitors to observe brown pelicans, great blue herons, broad-winged hawks, and burrowing owls up close while supporting vital non-profit avian wildlife rehabilitation and environmental education programs.

Free Admission (Donations Welcomed) • Open Sunrise to Sunset • Bayside MM 94.8

Waterfront Dining, Open-Air Tiki Culture & Fresh Gulf Seafood Traditions

No visit to Key Largo is complete without experiencing the island's legendary waterfront culinary culture. Positioned where commercial fleets unload daily catches at marina docks, Key Largo restaurants offer authentic 'dock-to-dish' dining with seasonal Florida Stone Crab claws, blackened yellowtail snapper, and spiny lobster tails.

On the Bayside corridor, open-air thatched tiki bars such as Snook's Bayside, the Caribbean Club, and Sharkey's Pub host iconic sunset celebrations along wooden boardwalks as golden hour reflects across Florida Bay. Patrons enjoy live calypso acoustics, craft Key West ales, and citrus-infused key lime pies while pelicans glide above the sheltered harbor waters.

Ecological Heritage Dagny Johnson Hammock: 2,800 Acres of Protected West Indian Hardwoods

MM 106.8 Bayside Reserve

Tropical Hammock Trails & Dual-Fishery Angling

Dagny Johnson Botanical State Park

Protects 84 rare plant and animal species across six miles of paved and unpaved nature trails shaded by gumbo-limbo, pigeon plum, and wild mahogany canopies.

Dual-Fishery Angling Charters

Deep-water offshore charters troll the Gulf Stream blue-water ledge, while shallow-draft skiffs sight-cast in Florida Bay for bonefish, permit, and juvenile tarpon.

Whether booking an offshore charter, exploring coral reefs on a catamaran, or savoring key lime pie at a sunset tiki bar, Key Largo seamlessly blends outdoor adventure with laid-back island tranquility. Paddlers navigating sheltered mangrove tunnels discover tranquil sub-tropical ecosystems where juvenile manatees and osprey flourish in pristine waters.

Key Largo Seasonal Excursion Calendar & Wildlife Migration Windows

Winter Stone Crab Season

From October 15 through May 1, local commercial fisheries harvest sweet stone crab claws with mustard sauce. Crisp northerly cold fronts spark prime offshore sailfish trolling on the Atlantic ledge alongside wahoo and king mackerel runs.

Spring Tarpon Migration

Between April and June, thousands of mature silver king tarpon migrate through Florida Bay passes and bridge channels, providing peak sight-fishing for flats fly anglers. Licensed guides pole shallow marl flats during early morning slack tides.

Summer Coral Spawning

July through September brings glass-calm seas, 80-foot underwater visibility, and the annual nocturnal mass coral spawning event following the August full moon. Warm water temperatures create ideal snorkeling conditions across outer barrier reefs.

Frequently Asked Questions About Key Largo Activities

What are the absolute best things to do in Key Largo for first-time visitors?

Top experiences include booking an offshore reef snorkel to Christ of the Abyss at Pennekamp Park (MM 102.5), cruising aboard the historic 1912 African Queen steamboat (MM 99.7), exploring sub-tropical botanical trails at Dagny Johnson State Park (MM 106.8), and dining waterside at sunset tiki bars like the Caribbean Club (MM 104).

How many days should you spend in Key Largo?

A 2 to 3-day itinerary allows sufficient time for a morning offshore reef excursion, afternoon backcountry kayak exploration through mangrove tunnels, and relaxed visits to local art galleries, wild bird rehabilitation sanctuaries, and waterfront dining.

What family-friendly activities are available in Key Largo?

Families enjoy glass-bottom boat excursions over living coral reefs, interactive dolphin encounters, safe swimming in the wave-protected Cannon Beach lagoon, and hands-on wildlife education at the Laura Quinn Wild Bird Sanctuary.