The Overseas Highway: every beach and stop worth making on the Miami–Key West drive

Quick answer: how do you drive the Overseas Highway?

You drive south on US-1 from the Florida mainland, and the road becomes the Overseas Highway as it enters the Keys near Key Largo, running 113 miles to Key West. Distances are marked by mile markers (MM) counting down from about 113 to 0, and locals give directions entirely by them ('it's at MM 82'). The whole drive is 3.5–4 hours without stops, but the point is to stop — for reef parks, the few real beaches, roadside seafood and the bridge views.

Time it for daylight, fuel up before the long bridge stretches, and plan a full day rather than a dash. The Keys reward the unhurried driver.

Key Largo and Islamorada (MM 106–70): the reef and the roadside

The Upper Keys are the reef-and-fishing stretch. John Pennekamp Coral Reef State Park (MM 102) is the first essential stop — the first undersea park in the US, with glass-bottom-boat, snorkel and dive trips to the reef and the Christ of the Abyss statue. Continuing south, Islamorada brings Robbie's (MM 77.5), where you hand-feed giant tarpon off the dock, and Anne's Beach (MM 73), a rare shallow, mangrove-backed wading beach. History of the Diving Museum and roadside seafood shacks fill the gaps.

This stretch is about water activities and roadside character rather than sand. Budget a reef snorkel or the tarpon feeding here, and do not expect wide beaches yet.

• John Pennekamp (MM 102) — reef snorkel/dive trips, glass-bottom boats, the Christ statue.
• Robbie's of Islamorada (MM 77.5) — hand-feed giant tarpon off the dock.
• Anne's Beach (MM 73) — a rare shallow, mangrove-backed wading beach.

The Middle Keys and Bahia Honda (MM 70–37): the best beach

Through Marathon (around MM 50) you reach the drive's beach highlight: Bahia Honda State Park (MM 37), which has the best natural beach in the entire Keys — wide sand, turquoise shallows, and a view of the old Bahia Honda Rail Bridge. It is the one place on the drive where you get a proper, wide, swimmable beach, so it is worth a real stop rather than a photo pause. Marathon also has the Turtle Hospital and Sombrero Beach, a decent local swimming beach.

If you only make one beach stop on the whole Overseas Highway, make it Bahia Honda. It is the answer to 'but where are the actual beaches in the Keys.'

The Seven Mile Bridge and the Lower Keys (MM 47–5)

Just past Bahia Honda comes the drive's scenic climax: the Seven Mile Bridge, a nearly 7-mile span over open turquoise water, running alongside the remnants of Henry Flagler's original early-1900s railroad bridge. It is the most photographed stretch of the whole route, and the Lower Keys beyond it (Big Pine Key, home to the tiny endangered Key deer) are quieter and wilder than the Upper Keys.

There is nowhere to stop on the bridge itself, so shoot it from the approaches or from Bahia Honda's beach, which frames it beautifully. The Lower Keys are a place to slow down before the final run into Key West.

Key West (MM 0): the end of the road

The Overseas Highway ends at Mile Marker 0 in Key West, the literal end of the continental US road system. Here the drive gives way to the town: Fort Zachary Taylor for the best local beach and snorkel, Duval Street, the Southernmost Point buoy, the Hemingway Home, and the nightly Sunset Celebration at Mallory Square. Most people stay at least one night, because the sunset is worth it and the drive back is long.

For the return, you retrace the same road north — but the Keys look different in the other direction and at a different time of day, so the drive back is its own reward rather than a chore.

Where to eat and refuel along the way

The Overseas Highway is famous for its roadside food, and eating is part of the drive. Key Largo and Islamorada have the densest cluster of seafood shacks and conch spots; the Middle Keys around Marathon are the practical lunch stop on a full-day drive; and Key West at the end has the widest choice. The Keys' signature dishes — conch fritters, fresh stone crab in season (roughly October–May), the pink Key West shrimp, and Key lime pie — are worth building a stop around rather than rushing past.

Fuel is the other planning point: petrol stations thin out on the long bridge stretches, and prices in the Keys run higher than on the mainland, so fill up in Homestead or Florida City before you start and top up in the larger towns (Key Largo, Marathon) rather than waiting. Carry water and snacks for the stretches with nothing, and treat the drive as a slow food-and-views day, not a transit leg.

• Densest food: Key Largo and Islamorada; practical mid-drive lunch: Marathon.
• Try conch fritters, stone crab (Oct–May), Key West shrimp and Key lime pie.
• Fuel up before the bridges — stations thin out and Keys prices run higher.

Practical driving notes

Fuel up before the long bridge stretches (stations thin out), carry water, and drive the speed limit — it is enforced and the road is largely two-lane with limited passing. Navigate by mile markers, which every business and address uses. Expect the drive to take far longer than the raw 3.5–4 hours once you factor in stops, and never rush it: the whole appeal is the water on both sides.

For the best light and the fullest experience, start early from Miami, make your stops through the day, and arrive in Key West for the sunset. Book Key West accommodation ahead — the island is small and fills up, especially in winter.