Best Things to Do in Key West & the Florida Keys

Key West sits at the very end of the road — Mile Marker 0, the southernmost point in the continental United States, closer to Havana than to Miami. Getting there is half the fun: the Overseas Highway leaps from island to island across 42 bridges and some of the most ridiculously blue water you'll ever see from a car window. But the Florida Keys aren't just one town. They're a 120-mile chain of islands, each with its own personality, strung between the Atlantic and the Gulf of Mexico over the only living coral barrier reef in North America.

This guide covers the experiences worth your time, where to base yourself, what to eat, and when to go — grounded in the tours travelers actually book rather than a generic bucket list. Whether you have a single day or a long, salty week, here's how to make the most of the Keys.

Snorkel the only living coral reef in North America

The headline attraction in the Keys is underwater. A few miles offshore lies a continuous coral reef teeming with parrotfish, sea turtles, rays, and the occasional nurse shark — and it's shallow and calm enough that first-timers do just fine. Boats run from Key West, Marathon, and Islamorada out to spots like Sombrero Reef and the patch reefs of the upper Keys, usually for two to three hours with gear included.

If you're staying mid-Keys, a snorkeling trip to Sombrero Reef from Marathon is one of the most reliable reef experiences in the chain. Out of Key West, you'll find longer outings that pair reef time with unlimited drinks on the ride back. Bring reef-safe sunscreen (Florida takes its reefs seriously), a rash guard if you burn easily, and motion-sickness remedies if open water isn't your friend. You can compare reef trips across all three hubs on our Key West & Florida Keys experiences page.

Watch dolphins in the wild

The waters around Key West are home to resident bottlenose dolphins, and watching them surf a boat's wake in their natural habitat beats any tank show. Most dolphin cruises combine sightings with a snorkel stop in the calm backcountry flats, so you get two experiences in one half-day trip. Many include an open bar or breakfast, and some bundle a hop-on hop-off land tour to round out the day.

Mornings tend to be calmest, which means flatter water for spotting fins and clearer visibility for snorkeling. These are genuinely family-friendly outings — kids love the dolphins, and the protected flats are far gentler than the open reef.

Chase the famous Key West sunset

Key West has turned sunset into a civic ritual. Every evening, crowds gather at Mallory Square for the Sunset Celebration — jugglers, fire-eaters, buskers, and food carts — as the sun drops into the Gulf. It's free, lively, and worth doing once.

For something calmer and more memorable, get out on the water. Sunset sails and dinner cruises leave the harbor in the late afternoon, often with a full bar, live music, and a buffet, putting you in the middle of the show instead of on the seawall watching it. A sunset catamaran out of Islamorada is the mellow upper-Keys version. Browse evening sails and dinner cruises in our full tours catalog and book the time slot that matches your sunset.

Get on (and under) the water: parasail, jet ski & sandbars

Beyond reefs and dolphins, the Keys are a watersports playground. Parasailing lifts you hundreds of feet above the flats for a postcard view of the island chain. Jet ski tours loop the island of Key West — roughly a 90-minute circuit that's more sightseeing than thrill-ride, though you can open it up in the channels. If you can't choose, all-in-one water-sports packages combine jet ski, parasail, snorkel, and a floating waterpark in a single day.

Up in Islamorada, the move is a sandbar trip: boats anchor on shallow flats — like the famous Whale Harbor sandbar — where you can stand in waist-deep, bath-warm water, swim, and snorkel. It's the Keys at their most relaxed.

Explore Old Town Key West on foot

You don't need a boat to enjoy Key West. Duval Street runs the length of Old Town, lined with bars, galleries, and Conch-style architecture. Walk it end to end and you'll pass the Ernest Hemingway Home, where the famous six-toed cats still roam, and the candy-striped Southernmost Point buoy — the most photographed spot in town, so come early to skip the line. Other classics: the Key West Lighthouse, the Truman Little White House, and the Mel Fisher Maritime Museum, home to real recovered Spanish treasure.

Old Town is flat and compact, ideal for exploring by bike or on foot. Hop-on hop-off trolleys are an easy way to hit the highlights if you're short on time or traveling with kids.

Where to base yourself in the Keys

• Key West — The liveliest hub: nightlife, history, sunset cruises, and the widest range of tours. Best if you want walkability and energy.
• Islamorada — The "Village of Islands" and self-styled sportfishing capital. Sandbar trips, snorkeling, sunset sails, and a slower pace.
• Marathon — Mid-Keys and family-friendly, with the Turtle Hospital, Sombrero Beach, and the best reef access in the chain.
• Key Largo — The first island you reach and the diving capital, home to John Pennekamp Coral Reef State Park.

Short on time or based in South Florida? A day trip to Key West from Miami is a popular option — a long but scenic drive down with optional activities once you arrive.

What (and where) to eat

Two dishes define the Keys: conch fritters — golden, peppery, and everywhere — and authentic key lime pie, which should be pale yellow and tart, never green. Fresh seafood is the rule: stone crab in season (October to May), pink Key West shrimp, mahi-mahi, and yellowtail snapper, often served dockside. Don't skip the cafecito and Cuban-influenced fare that reflects the islands' heritage. Many waterfront restaurants let you bring your own catch and have the kitchen cook it.

When to visit and getting around

The Keys are a year-round destination, but the seasons matter. December through April brings dry, sunny, low-humidity weather — peak season, peak prices, and busy holidays and spring break. May and November are sweet spots: warm water, thinner crowds, better rates. Summer is hot, humid, and the cheapest time to visit, with the best water clarity for snorkeling — just watch the Atlantic hurricane season (June to November), and book experiences with flexible cancellation.

Getting around is simple: one road in, one road out. Renting a car gives you the freedom to island-hop, and the Overseas Highway drive is an attraction in itself. In Old Town Key West, ditch the car and walk, bike, or take the trolley — parking is tight and most of the action is within a few blocks.

Plan your Florida Keys trip

The best of the Keys happens on the water — reefs, dolphins, and that legendary sunset — so the smartest move is to lock in your tours before you go, especially in peak season. Compare snorkeling trips, dolphin cruises, sunset sails, and watersports adventures across Key West, Marathon, and Islamorada, all bookable through Attractions4Us with instant confirmation and free cancellation on many experiences.

Ready to plan? Explore Key West & the Florida Keys, browse the full tours catalog, or reach our team at +1 (917) 935-4412 or Reservations@attractions4us.com — real people, happy to help you build the perfect island day. Traveling with a crew? Ask about group bookings.