From Pirates to Paradise: The History of Grassy Key
- Grassy Flats
- Sep 2
- 2 min read
If you’ve ever found yourself gazing out over the turquoise waters from a hammock here at Grassy Flats, you might wonder—what stories has this little island seen? Beyond the swaying palms and sand, Grassy Key holds a fascinating history that’s every bit as colorful as its sunsets.
A Hidden Gem in the Middle Keys
Grassy Key is a small island in the middle of the Florida Keys, just north of Marathon. It may not be as famous as Key West or Islamorada, but what it lacks in notoriety, it makes up for in authenticity and stories.
Before roads connected the Keys, Grassy Key was accessible only by boat. It was remote, rugged, and ripe for adventure, making it the perfect hideout for smugglers, fishermen, and the occasional outlaw.

Early Days: Pioneers and Coconut Palms
Grassy Key’s first permanent settlers arrived in the late 1800s. These were hardy individuals—families who made their living from the sea and the land, harvesting coconuts, pineapples, sponges, and fish. It was a life defined by tides and weather, far from the bustle of the mainland.
For a time, it was known as "Crainlyn," named after the Crain family, early settlers who played a major role in the island’s development. But the original name, Grassy Key, endured, and it fits the laid-back, natural vibe we still treasure today.
Henry Flagler’s Railroad: A Game-Changer
The biggest turning point in Grassy Key’s history came in the early 1900s, thanks to one man: Henry Flagler. His ambitious Overseas Railroad connected the Keys to the mainland for the first time in 1912. Suddenly, this tiny island was no longer so remote.
Though the railroad was destroyed by the 1935 Labor Day Hurricane, it laid the foundation for the Overseas Highway, which now brings travelers from all over the world right through Grassy Key.

The Dolphin Legacy
In the 1940s and '50s, Grassy Key became known for something unique: dolphins. The world-famous Dolphin Research Center, located just a few minutes from Grassy Flats, was originally home to Mitzi, the dolphin who played Flipper in the 1963 movie. Today, the center continues to be a leader in marine mammal research, education, and rescue, keeping Grassy Key on the map in the best possible way.
Preserving the Quiet Charm
Despite the changes brought by progress and tourism, Grassy Key has never lost its soul. Unlike more commercialized parts of the Keys, it’s still a place where the pace slows down, where nature leads the way, and where old Florida charm lives on.
Here at Grassy Flats, we’re proud to be part of that legacy. From the tranquil oceanfront buildings to our commitment to preserving this unique ecosystem, everything we do is rooted in the history and spirit of this island.
So next time you're lounging under a tiki hut with a cold drink in hand, take a moment to appreciate the stories this island holds, from pioneers and pirates to Flipper and Flagler. Because here on Grassy Key, the past is always just a breeze away.
Ready to make your own history in the Keys?
Book your stay and experience Grassy Key’s magic for yourself!



