The Overseas Highway to Key West
A string of islands and 42 bridges, with a gator detour through the Everglades first.
- Distance
- 379 km (235 mi)
- Driving
- 4 h 12 min
- Suggested days
- 2
- Stops
- 8
- States
- FL
- Updated
- June 20, 2026
At a glance: 2-day road trip of about 379 km (235 mi) with 8 stops, from Miami to Key West. About 4 h 12 min of driving in total.
Route description
Leave Miami southbound for Homestead, where Coral Castle shows more than 1,100 tons of coral rock carved and moved by one man working alone. Before heading for the Keys, take Krome Avenue north to the Tamiami Trail (US-41) and Shark Valley in Everglades National Park. Its 15-mile paved loop through the sawgrass can be done by rented bike or on the tram, often with alligators lying beside the path.
Back at Florida City, US-1 becomes the Overseas Highway and crosses to Key Largo, the first of the larger islands. Mile markers count down from here to Key West, and many addresses along the road are given by mile marker. At Marathon the Seven Mile Bridge carries you across almost seven miles of open water, with the old bridge running alongside, partly open to walkers.
Just beyond, Bahia Honda State Park has beachfront campsites and some of the clearest water in Florida; reservations open up to 11 months ahead, and in winter you will need them. The highway ends in Key West, where the striped Southernmost Point Buoy marks 90 miles to Cuba and draws a line at sunset. The Overseas Highway is mostly two lanes with few places to pass, parking in Key West is tight for motorhomes, and hurricane season runs from June to November.
Stop-by-stop itinerary
In driving order. Distances are estimates between consecutive stops.
- 1Start
Miami
FL - 246 km
Coral Castle
OdditiesHomestead, FLMore than 1,100 tons of coral rock carved and moved by one man working alone at night. Nobody is quite sure how he did it.
- 352 km
Shark Valley, Everglades
NatureMiami, FLA 15-mile paved loop through sawgrass, with alligators sunning at the edge. Rent a bike or take the tram.
- 497 km
Key Largo
FL - 598 km
Seven Mile Bridge
ViewsMarathon, FLAlmost seven miles of open water on the Overseas Highway. The old bridge alongside is partly open to walkers.
- 618 km
Bahia Honda State Park Campground
CampingBig Pine Key, FLBeachfront Keys camping with some of the clearest water in Florida. Book up to 11 months ahead.
- 765 km
Southernmost Point Buoy
OdditiesKey West, FLA striped concrete buoy that says Cuba is 90 miles away. Expect a line at sunset.
- 82 km
Key West
FL