The moment you merge south onto US-1 past Florida City, your Overseas Highway road trip begins. The strip malls and traffic signals fade out, the road narrows to two lanes with a turquoise divider, and then the Atlantic opens up on your left while the mangroves and Florida Bay spread out on your right. You’re on the Overseas Highway, 113 miles of island-hopping asphalt connecting 42 bridges and a chain of islands found nowhere else in America. It’s one of the most unforgettable drives in the lower 48, and it is fun for every hour you’re driving it. The non-stop drive clocks in around two and a half hours, but anyone who finishes it in two hours has genuinely missed the point. The real experience is in the stops: a snorkel trip over coral, feeding tarpon by hand off a wooden dock, strolling out over open ocean on a old bridge.
I’m going to help you plan this route town by town, from Key Largo all the way down to Key West, with ides for lodging, dining, and activities at every community along the way. This guide covers everything you need before you leave: the best stops with realistic time spent, fuel and parking logistics, seasonal timing, and how to build a 1, 2, or 3 day itinerary that fits your available time. My favorite way to do the Overseas Highway road trip is over a week, but if you want to do a shorter trip and have questions about what we recommend, please leave a comment or send us a note. We’re always happy to share more and help you plan an awesome adventure.
What to know before your Overseas Highway road trip
I cannot say enough about how much I enjoy the Overseas Highway road trip. It always makes me happy, whether I’m doing it on my own or if I have my family with me. Each time I hit the aqua colored highway dividers, I just feel a sense of joy and I know there are beautiful sights and fun ahead.
How long is the drive, and how far will you realistically get in a day?
The Overseas Highway runs 113 miles from the Florida City junction down to Key West. Light traffic and zero stops gets you there in roughly two and a half hours, but that number is mostly theoretical. Weekends bring real congestion, especially on Fridays heading south and Sundays heading back north, and Key West’s Old Town traffic alone can add 30 minutes. With stops, a full end-to-end drive runs four to six hours. A one-day trip means making deliberate choices about where to slow down; two or three days means you can actually experience the islands instead of just checking them off.
And something to keep in mind if you are driving on a weekend: festivals ARE TRAFFIC. For example, if you roll through Marathon during the seafood festival, add an hour to your drive simply for the stop and go of it.
Tolls, Fuel, and Parking: what to budget beyond lodging
Don’t worry, US-1 itself (the Overseas Highway) has no tolls. Card Sound Road, an alternate scenic entry from Homestead and sometimes the best way to start the Overseas Highway road trip, charges a small toll and offers a quieter approach through the mangroves if you’re not in a rush. This is the backdoor to Key Largo and takes you past Dagny Johnson Key Largo Botanical State Park.
Fuel is a slight concern as you drive. Gaps between stations stretch wider as you head south, and prices run noticeably higher than mainland Florida. Never let the tank drop below half once you’re past Homestead just as a rule. Parking costs are few and far between, but they’re important to pay when you stop at Sombrero Beach or other city-managed areas. John Pennekamp and Bahia Honda State Parks charge standard state park entry fees, as do Curry Hammock and Long Key State Parks. When you get to Key West, the Old Town Parking Garage peaks at $48 per day. Build parking into your trip budget the same way you would lodging if you’re going to be visiting places where you need to pay to access or to leave your car.
Overseas Highway driving tips: timing, weather, and seasons
The dry season from December through April has the best weather, but also peak crowds and peak prices. The real sweet spot is April and May because conditions stay excellent, humidity hasn’t spiked yet, and traffic on US-1 is noticeably less compared to the winter rush. Hurricane season runs June 1 through November 30, with the highest risk concentrated in August through October. Summer trips are entirely doable, but flexible cancellation policies matter more from August onward.
Another thing to keep in mind when you’re planning an Overseas Highway road trip is that if you’re going in the summer, this is the hottest and most humid time. Yes, it’s the most fun because everything is happening and there are events like Pride and music festivals, but it’s HOT and that’s just a deal breaker for a lot of people.
Key Largo: where your Florida Keys road trip begins
We’re starting at the northern end of the Overseas Highway and we’ll end in Key West. Most people are planning this trip coming from Miami or the Everglades, so if that’s you, this is perfect and you don’t need to adjust any of our plan. If you’re one of the few flying into Key West and doing the drive in reverse, then you’ll need to make the necessary changes.
Key Largo Sights to See
Key Largo is the first and longest island in the Florida Keys. Mile markers count down from 127 at the mainland boundary, and Key Largo proper runs from around MM 110 south to MM 90. Most travelers blow through expecting nothing before the “real” Keys, and that’s a mistake, because this is my favorite island. Key Largo is the gateway to John Pennekamp Coral Reef State Park and the Florida Keys National Marine Sanctuary, which makes it the best place on the entire drive to get in the water over live coral. Stopping here early in the day, before afternoon boat traffic builds up, is a great idea. Don’t just drive through.
Key Largo is also home to the film-famous African Queen boat, which you can do tours out to look for dolphins, and then there is also the Marine Lab for exploring underwater with marine biologists. Stop at the Wild Bird Sanctuary and you have done some fun, worthwhile Key Largo stops on your Overseas Highway road trip.
John Pennekamp Coral Reef State Park
Pennekamp is the most important stop in the Upper Keys and one of the non-negotiables on this entire Overseas Highway drive. It’s the first underwater state park in the United States and offers snorkel trips, scuba dives, glass-bottom boat tours, and kayak rentals available all throughout the day. The park sits within the Florida Keys National Marine Sanctuary, giving snorkelers and divers access to some of the healthiest coral in the continental US. Morning snorkel tours fill quickly during peak season, so book ahead rather than hoping for walk-up availability. Budget two to four hours if you’re getting in the water, or at least an hour if you’re sticking to the trails and the small beaches. First-time Keys visitors who skip Pennekamp State Park probably say they wish they hadn’t.
TIP: if the snorkeling tours that are done from within the State Park are sold out, you can book other trips that leave from Key Largo and go to the same reefs. Horizon Divers and Silent World both do great snorkeling trips. Book a two-site snorkel tour from Key Largo here!
Where to Stay in Key Largo
For those planning to do the Overseas Highway road trip more slowly and want to spend a night or two on Key Largo, we have lots of recommendations for where to stay. I like staying on Key Largo because it’s so mellow and there is lots of good food and easy activities. Here are our top picks for where to stay on Key Largo:
The Waterside Suites is a great budget option and is walking distance to several boat tour operators. The Amoray Dive Resort is really relaxing with really good snorkeling directly from the property and their own snorkeling/diving tour boat. And then Bakers Cay Resort is the luxury pick that everyone loves, with its beach and swimming pool.
Islamorada to Marathon: the heart of the Florida Keys
Not long after departing Key Largo you’ll come to Islamorada, which is a collection of islands, not just one. Islamorada is a village of neighborhoods, resorts and marinas for getting out onto the water. Islamorada has some of my favorite snorkeling spots too. If you’re into museums the Florida Keys History and Discover Center and the History of Diving Museums are both good stops.
Founders Park
It may seem like a not-that-interesting stop to put on the Overseas Highway road trip, but Founders Park in Islamorada is a great stop! This is the best beach in the Village of Islamorada and it has fantastic snorkeling. There’s a playground and open space for kids to get out energy, and there are good facilities so you can enjoy everything at the park and then get back in the car and not be salty/sandy. Note that there is an entrance fee for Founders Park, but it’s worth it and it’s a fun stop on the Overseas Highway road trip.
Note: not far past Founders Park is the world famous Rain Barrel Artist Village. This is where you can see one of the best roadside attractions in the Florida Keys, Betsy the Lobster.
Robbie’s Marina
Robbie’s of Islamorada sounds quirky on paper and is completely in person. You pull up, buy a bucket of baitfish for a few dollars, lean over the dock, and dozens of massive tarpon, and sometimes nurse sharks, show up from the water to grab fish right from your hand. It’s kinda wild. When you’re done with the tarpon, check out everything else happening at Robbie’s. Budget 45 to 90 minutes here, longer if you grab lunch at the dockside restaurant or browse the open-air market stalls.
Beyond Robbie’s of Islamorada, there are lots of sportfishing options if you want to do a charter, and several excellent waterfront lunch spots if you’re not eating at Robbie’s, making it a natural midday stop between the Upper Keys and Marathon.
Where to Stay in Islamorada
If you choose to do an overnight in Islamorada, you have lots of options for much more resort-y places to stay an on Key Largo. Islamorada is both a hub of fun and it’s really peaceful. We’ve stayed in all kinds of places here, but are just sharing a few recommendations that would fit well with an Overseas Highway road trip that spends a few days here:
- Casa Morada Resort – book it here
- Treasure Harbor Houseboats – book it here
- Coral Bay Resort – book it here (2+ night stay)
Two of my favorite resorts in all of Florida are here in Islamorada: the Casa Morada Resort and Coral Bay Resort. The Casa Morada Resort is quiet, set back away from the Overseas Highway, and is adults-only. I LOVE IT and it is best enjoyed over several days of relaxing, snorkeling from the dock and enjoying the Islamorada sunset. The other place to stay on Islamorada that is just perfect and easily overlooked is the Coral Bay Resort. This is a pastel dream of yesteryear Islamorada. Bungalows, a pool, a little lagoon and amazing snorkeling directly from the property make this one of the best multi-night stays in the Keys. They don’t allow just one night’s stay, so plan to be here for two or more.
Marathon: Wildlife Encounters at the Midpoint
Dolphin Research Center and Turtle Hospital
Marathon sits around MM 50, roughly the midpoint of the drive, and has two great options for getting to see or interaction with Florida Keys animals: the Turtle Hospital and the Dolphin Research Center. The Turtle Hospital runs guided tours through its sea turtle rehabilitation facility. This is a working conservation operation, not a theme park, and it’s one of the more genuinely meaningful stops on the whole Overseas Highway road trip. The Dolphin Research Center offers structured dolphin encounter programs that require advance reservations. If you’re keeping the day moving, pick one rather than both; each runs about one to two hours.
TIP: if you don’t do Dolphin Research Center, on your way back out of the Keys, Dolphin Life Key Largo and Dolphins Plus Bayside are both awesome for getting to have a dolphin experience.
Snorkeling and Sandbars off Marathon
One of the most beautiful things you see when you’re doing the Overseas Highway road trip is the the sandbar phenomena from the bridges. Some of the sandbars come and go and some make it through hurricanes and changing tides. And beyond the sandbars are some awesome snorkeling spots. While you’re on Marathon do either a sandbar trip on the Marathon Mermaid or plan a highspeed snorkeling adventure on the Starfish, heading out to the Sombrero Key Lighthouse. Either of these trips can be done in the morning or afternoon, and both are a blast!
TIP: the Starfish Catamaran is the most fun snorkeling tour you can do in the Florida Keys. Even before you’re at your snorkeling site, you’re getting wet from the waves crashing over the boat, and then when you get to the lighthouse, it’s some really good snorkeling. Book the Starfish Catamaran DIRECT here!
Pigeon Key Day Trip
A great way to break up the Overseas Highway road trip is making stops that highlight what makes the Florida Keys so unique. As you head south, you can park at the start of the 7 Mile Bridge (more on that in a moment) and walk or bike out to Pigeon Key, which is a whole historic district from when the railroad was being built. You can also do a tour on a tram to Pigeon Key (saves a lot of time), and then you can hang out on the island, do the history tour and snorkel around. It’s a great activity.
Where to Stay on Marathon
Marathon is a great overnight stop because it’s halfway through the Keys and breaks up the drive nicely. When we’re doing a week long trip, we like to spend one or two nights in Marathon because it’s so much more quiet and mellow than any other keys. Here are our top hotel picks in Marathon:
- Courtyard Faro Blanco – book it here
- Faro Blanco Resort – book it here
- Grassy Flats Resort – book it here
Both of the Faro Blanco properties are wonderful, but the Courtyard Faro Blanco is our pick if you’re traveling with kids. It’s got multiple pools, indoor and outdoor game space, and the rooms are pretty big. The Faro Blanco Resort next door is a bit fancier and quieter. Here you’ll also find the Ocean Spa, which is lovely. At the north end of Marathon is the Grassy Flats Resort, which is a very different vibe, including an adults only area.
The 7 Mile Bridge: the Most Epic View on the Drive
Probably the most iconic stretch of the Overseas Highway, the 7 Mile Bridge is beautiful, stretching for seven miles over beautiful turquoise waters, running alongside the old bridge that was damaged in the Labor Day Hurricane of 1935. It takes ten minutes to cross and it’s the best part of doing a road trip in the Keys, just for the view and the feel of freedom as you cross the ocean.
What crossing the bridge actually feels like
At mile marker 47, the 7 Mile Bridge sends you out over open water with nothing on either side except the Gulf and the Atlantic blending together at the horizon. It’s among the longest segmental bridges in the world, and driving it at a steady pace, the posted limit is 45 mph, is one of those experiences that doesn’t fully translate in photographs. The openness of the span can feel disorienting in the best way, like the road is floating in the middle of nowhere. There’s no legal stopping on the main span, but a short parking area on the Marathon side gives you access to the old bridge running parallel to it. This is what takes you to Pigeon Key.
Walking or Biking the Old Span
The historic original Seven Mile Bridge is open to pedestrians and cyclists, extending about 2.2 miles one way from the Marathon end out to Pigeon Key. It’s flat, easy, and puts you literally over the open ocean with water stretching in every direction. Budget 20 to 45 minutes for a short out-and-back, longer if you want to push further out and take your time with the views. If your timing lines up with sunset, this is one of the best spots on the entire route to watch it.
Bahia Honda and the Lower Keys before Key West
This is the home stretch of the Overseas Highway road trip as you come off the 7 Mile Bridge. Next up is Bahia Honda, which is both gorgeous and some of the best casual exploring you can do in the Lower Keys. When you make it here, you’ll have several stops worth making and that just add to the beauty of the experience.
Bahia Honda State Park: the Best Beach Stop on the Drive
Bahia Honda is the closest thing to a classic sandy beach you’ll find in the Florida Keys, and the setting is genuinely dramatic. The ruins of the original Overseas Highway bridge, called the Old Bahia Honda Bridge, rise above Bahia Honda State Park on the bay side while the shallow turquoise water on the Atlantic side stays clear enough to see the bottom at ten feet. Plan on 1.5 to 3 hours here: swimming, snorkeling from the shore, and a slow walk along the waterline. Day-use entry runs $8 per vehicle. You cannot reserve your day-use spot in advance, even peak season so be flexible with your plans. The park fills up and visitors will have to wait to get in on busy weekends. The line can stretch to the Overseas Highway but cannot go onto it. If you can’t get in, plan to stop on your way back up through the Keys.
There are three different beaches at Bahia Honda State Park: Calusa, Loggerhead and Sandspur. Calusa Beach has the best snorkeling and is close to facilities. Loggerhead Beach has the best sandbar and it’s THE DREAM BEACH when the annual sargassum isn’t covering the shore.
Old Bahia Honda
If you don’t mind a slightly less glamorous beach visit, after you drive across the Bahia Honda Bridge, you’ll come to Spanish Harbor Beach on the north side and the old Bahia Honda wayside on the south. Spanish Harbor beach is great for snorkeling and taking a dip in the legit coldest water in the Florida Keys. The Old Bahia Honda wayside is great for photography, looking for shells and watching wildlife in the water.
Big Pine Key and the Overlooked Lower Keys
The stretch between Bahia Honda and Stock Island gets skipped in the rush to reach Key West, and that’s a mistake worth avoiding if you have the time. Big Pine Key is home to the National Key Deer Refuge, where the tiny endangered key deer wander freely through residential streets. Slow down and watch for them, and maybe stop by the Blue Hole to watch wildlife in and around the old quarry pond.
Looe Key National Marine Sanctuary, accessible around mile marker 27, is an amazing snorkeling and diving site that sees a fraction of Pennekamp’s traffic, making it a great alternative if you want Florida Keys snorkeling and diving without the crowds. Captain Hook’s does a good snorkeling tour out to Looe Key Reef. If you have a second day, this area deserves a dedicated morning. No Name Pub on No Name Key is also worth hunting down: it’s hard to find, covered in signed dollar bills on the walls, and about as authentically Keys as a place gets.
Overseas Highway road trip: 1, 2, and 3 Day Itineraries
Okay, now that you know about all the stops that are the most worthwhile to hit up on your Overseas Highway road trip, let’s see what actually will fit with the time you have available. Take our 1, 2 or 3 day itineraries and add one or two overnights in the spots you’re most interested and you can turn this into a week long or more vacation plan.
The one-day drive: what to prioritize
One day means making real choices. The most efficient single-day route hits Pennekamp for a quick walk or short glass-bottom boat tour if you’re not snorkeling (1 hour), Robbie’s in Islamorada (45 minutes), the Old Seven Mile Bridge for a short walk (30 minutes), Bahia Honda for swimming and the bridge views (1.5 hours), and Key West for sunset. That covers reef access, a few potential wildlife moments, the iconic bridgees, the best beach, and the endpoint. Start before 8 a.m. and you’ll have breathing room at each stop rather than rushing from one parking lot to the next. This timing will allow you to be on one of the first snorkeling trips from Key Largo.
Overnight in Key West: check out some of our picks for Key West hotels that really do make for a great, short visit to this awesome town. Each of these hotels is steps away from the Historic District and seaports, making it really easy to have a great, short visit (of course they’re great for longer stays too):
- Eden House Key West – book it here
- The Marker Key West – book it here
- Hyatt Centric Key West – book it here
Two and three days: slowing down and going deeper
Two days changes the trip significantly. Spending the first night in Islamorada or Marathon puts you at the midpoint with the Lower Keys and Key West entirely fresh for day two. Three days opens up room to add a snorkel trip at Looe Key, gives you time to explore Key West properly (Fort Zachary Taylor, the Historic Seaport, the full length of Duval Street), and circle back on stops you moved through quickly. We’ve got some dedicated town guides for Key Largo, Islamorada, Marathon, Big Pine Key, and Key West, each covering lodging picks, dining recommendations, and activity options specific to that community. Use them to plan each night’s stop rather than winging it when you’re already tired from driving.
The best Overseas Highway road trip takes a full week and you pace yourself to have two nights each in Key Largo, Marathon and Key West. No matter what you choose though, you’ll have a great time.
Plan well, drive slow, and get in the water
The Overseas Highway road trip is great for the people who treat the drive as a destination rather than a commute. The 113 miles are short, but the experience can be as long as you decide to make it. Fill up on fuel before you need to, book your Pennekamp snorkel trip and accommodations before you leave home, and resist the temptation to skip the Lower Keys just because Key West is the famous endpoint.
Every town on this Keys road trip has something worth stopping for, and the best way to find it is to go in with a plan rather than pulling off wherever traffic slows. If you have any questions about planning this drive or ANYTHING relating to the Florida Keys, please leave a comment or send us a note. We’re always happy to share more and help you plan a great road trip adventure!
