The old 7 Mile Bridge is a great walk or short bike ride. Pigeon Key is fascinating for history buffs & lovers of islands in general.
NOTE: The Old Seven Mile Bridge closed for repairs from July 5, 2016, to roughly April 2017. The $2 million project will reconfigure the parking lot and create a handicapped-accessible walkway from the old bridge under the new bridge to the ocean side. It will include adding picnic pavilions and scenic overlooks.
MARATHON — This is a bike trail with a story to tell.
The Old Seven Mile Bridge is not only spectacularly scenic, it also brings you as close as you can to experiencing Henry Flagler’s historic “railroad that went to sea.” The bridge, an engineering marvel of its day, is listed on the National Register of Historic Places.
Today, it makes a memorable bike ride or walk when you’re visiting the Florida Keys. Peering over the rusting guardrails — the actual rails that carried trains during its run from 1912 to 1935 — you gaze into the translucent waters and may spot sharks or sea turtles or other marine life. Magnificent frigatebirds and pelicans soar overhead.
You’ll travel far before you find another bike trip with this combination of history and postcard moments. (The Seven Mile Bridge was recently named the most beautiful place in Florida by Thrillist.)
It is 2.2 miles to Pigeon Key (a great visit about which there is more below.) If you want more biking after your roundtrip on the bridge, we recommend taking the bike trail north and then east to Sombrero Beach.
(Specifically, pedal north along the trail for three miles through Marathon and take a right towards the ocean at Sombrero Beach Road at MM 50. You’ll be leaving the Overseas Heritage Trail but you’ll be riding on a dedicated bike path east to Sombrero Beach, which is a beautiful free local beach and well-landscaped park with picnic tables, rest rooms, swimming and snorkeling.)
The history of the Old Seven Mile Bridge is closely tied with Florida’s history — Henry Flagler’s railroad down the east coast of Florida is what opened the state to the world. For better or worse, Florida is what it is because of Henry Flagler.
His overseas railroad, the first land route ever from Miami to Key West, never was a financial success and then it became a downright disaster. A devastating 1935 hurricane brought 200 mph winds and a 17-foot storm surge, washing away miles of railroad. Flagler’s bankrupt Florida East Coast railway sold the whole right-of-way to the state for one-seventh what it cost Flagler to build the railroad.
The Seven Mile Bridge was easily converted by the state of Florida to an automotive bridge — that’s the surface you bike or walk today. Until 1982, when the adjoining new bridge opened, it was the only road cars could take to Key West. (I vividly remember it as a white-knuckle ride, and when you experience how narrow it is first-hand, you will know what I mean.)
Folks in the Keys treasure the Old Seven Mile Bridge and use it daily. In season, it fills up each night with people savoring the famous Florida Keys sunset.
In recent years, though, the bridge had deteriorated to the point that no vehicles are now allowed on it except the Pigeon Key golf cart. Pigeon Key used to run a tram out to the island, but now visitors come by boat. Recently, fishing, once a most popular pastime, was banned on the bridge to reduce stress.
The main issue with the bridge, according to Kelly McKinnon, executive director of the Pigeon Key Foundation, is that the unsupported sections that were added in 1935 to widen the structure for vehicle traffic are starting to sag.
In December, 2013, however, local, county and state governments came together to save the Old Seven Mile Bridge with a $77 million restoration plan.
The other 5.8 mile section of the Old Seven Mile Bridge south of Pigeon Key cannot be accessed– a section was removed south of the island to prevent that — and today the remaining expanse rusts in the sun and solitude, with an occasional tree finding enough dirt in a crack to sprout from it.
With no maintenance, will the old bridge just blow down in the next big hurricane?
McKinnon laughs at the thought. “The new bridge will go down before the old one does. It’s been there for 100 years; it was made to last. The new one was just built by the lowest bidder.”
Fans of the bridge have organized into Friends of Old Seven who are working to focus more attention on the bridge.
When you visit the Old Seven Mile Bridge, it may look familiar. It has appeared in several films, most famously the 1994 True Lies with Arnold Schwarzenegger, when the old bridge is shown being destroyed by missile strikes. (The explosion was done on an 80-foot model.)
If you plan to bike or walk the Old Seven Mile Bridge:
- Note the bridge scheduled closure from July 5, 2016 through April 2017
- There is parking just north of the bridge gulfside at Mile Marker 47 in Marathon. To visit Pigeon Key by boat, go to the visitor center on the ocean side. Even if you ride your bike to the island, you still need to pay the $12 admission, so you might as well enjoy the bike ride as a separate activity and then take the boat over for a guided tour.
- More bicycling in the Keys is available on the Florida Keys Overseas Heritage Trail. This Florida Rambler story recommends the best sections for safety and scenery.
- Jerry Wilkinson’s detailed history of the Overseas Railroad.
- Friends of Old Seven, a non-profit committed to preserving the bridge. Here folks shared their memories of the historic bridge.
Visiting Pigeon Key: Where the Old Seven Mile Bridge started
Few history lessons are as beautiful as this one: A visit to Pigeon Key, a picturesque little island surrounded by dazzling blue water in the middle of the Old Seven Mile Bridge.
There are lots of places I love in the Florida Keys, but Pigeon Key is at the top of the list.
Here’s what I love: spectacular views, its isolation from the outside world, an amazing human story, charming historic buildings, snorkeling off the dock and the fact that the island gets 95% of its energy from solar power.
Pigeon Key visitors pay $12 (kids 5-13 are $8.50) and are whisked by speed boat from Marathon to the island — a delightful two-mile ride under both the new Seven Mile Bridge and the old one.
A tour guide walks you through many of its 11 historic buildings. Pigeon Key housed the workers who built the Seven Mile Bridge from 1908 to 1912 for railroad magnate Henry Flagler, a partner of John D. Rockefeller.
The Seven Mile Bridge and Pigeon Key’s fascinating history are told through displays and artifacts in its museum.
There’s more than history on Pigeon Key. Visitors can bring their lunch and relax under the shade created by the solar array built on the island’s east side. Picnic tables are available and you are encouraged to stay after the tour and snorkel in the clear waters off Pigeon Key’s dock.
Tours of Pigeon Key are at 10 a.m., noon and 2 p.m. The $12 tours last about two hours and includes a 2-mile boat ride ferrying you to the island. (There is no access of the Old Seven Mile Bridge from Pigeon Key.)
Get tickets at the Pigeon Key Foundation’s gift shop in Marathon, in an old railroad car at 1 Knight’s Key Blvd. or by calling (305) 743-5999. Additional information is available at the foundation’s website.
Resources for planning a Florida Keys vacation
- Mile marker guide with dozens of stops to help make the most of your drive south.
- Florida Keys Overseas Heritage Trail: The best sections to bike
- Florida Keys wildlife: Places to see animals
- Tiki bars: Soak up the Keys atmosphere
- 12 great kayak outings in the Keys
- Top 10 pit stops on Overseas Highway
- Free beaches in the Florida Keys
- Bicycling the Florida Keys Overseas Heritage Trail
Other nearby things to do in the Upper and Middle Keys
- Indian Key: Kayak into history
- Islamorada emerging as hub with new museum, brewery
- Indian Key: Kayak into history
- Feed the tarpon at Robbie’s Marina
- Sea Turtle Hospital in Marathon
Many readers have written to ask: Can you bicycle across the Seven Mile Bridge?
You could only do this on the new bridge, I wouldn’t do it — but, then, I’m a recreational bicyclist who is looking for stress-free, safe trails. It is not recommended for that kind of ride!
Many bicyclists do it. There’s about a five-foot lane for bikes and the bridge is mostly flat, with about one-mile at the center elevated, according to a bicyclist who has written about it. Here’s a section of her account on pedaling the length of the Keys.
Here’s more about the Florida Keys Overseas Heritage Trail. If your are bicycling in the Keys and want to skip crossing the Seven Mile Bridge, Marathon taxis now have bike racks and can shuttle your across the bridge.