The Florida Keys are known for their clear blue waters, tropical charm, and laid-back lifestyle. But beyond the beaches and coral reefs lies a fascinating part of maritime history—its historic lighthouses. These coastal beacons once guided ships safely through the Keys’ tricky waters, warning of shallow reefs and dangerous shoals. Today, they stand as symbols of the region’s seafaring past.

Exploring these lighthouses is a great way to connect with local history, whether you’re a resident, a boater, or a curious traveler. Each one has its own unique story and design. Let’s take a closer look at nine of the most notable lighthouses in the Florida Keys.

1. Alligator Reef Light

Just off the coast of Islamorada, the Alligator Reef Light has stood since 1873. At 136 feet tall, it’s hard to miss. It was automated in 1963 and turned off in 2015. However, thanks to a local community effort, it was relit using solar power in 2023.

2. Sombrero Key Light

Located near Marathon, this 142-foot tower was built in 1858. With its open, skeletal frame, it was easier to withstand storms. The light was automated in 1960 and officially turned off in 2015.

3. American Shoal Light

Closer to Sugarloaf Key, this lighthouse was completed in 1880. It stands 110 feet tall and helped guide mariners until it was deactivated in 2015. Like many others, it was automated decades earlier, in 1963.

4. Sand Key Light

Offshore from Key West, the Sand Key Light has a long and dramatic history. The original lighthouse was destroyed by a hurricane, and the current structure has stood since 1853. It continues to be a landmark in local lore.

5. Key West Lighthouse

Right in the heart of Key West, this lighthouse has been part of the community since 1825. After a hurricane destroyed the original, it was rebuilt in 1848. Today, it serves as a museum where visitors can climb the tower and explore lighthouse keepers’ lives.

6. Dry Tortugas Light (Loggerhead Key Light)

Located on Loggerhead Key in the Dry Tortugas, this lighthouse is one of the most remote in the country. Built in 1858, it was automated in 1988 and deactivated in 2015. Its isolation makes it a special destination for adventurers.

7. Tortugas Harbor Light (Garden Key Light)

Also found in the Dry Tortugas, this lighthouse sits within historic Fort Jefferson on Garden Key. Built in 1826, it was eventually replaced by the larger Loggerhead Key light. Still, its place in early navigation history remains important.

8. Carysfort Reef Light

Located off Key Largo, this lighthouse was first lit in 1852. It was one of the oldest lights in continuous use until it was turned off in 2015. Automation came in 1960, helping extend its working life.

9. Fowey Rocks Light

Although it sits just north of the Keys near Key Biscayne, Fowey Rocks Light is often considered part of the region. Built in 1878, this lighthouse is still active today, continuing its long tradition of guiding vessels past the coral reefs.

A Look Back at the Beacons of the Keys

The lighthouses of the Florida Keys are more than just landmarks. They are part of the islands’ identity and a tribute to the brave mariners and keepers who depended on them. Whether standing tall offshore or tucked into a national park, each lighthouse tells a story of resilience, engineering, and the human spirit.

If you’re planning to visit the Keys, consider adding a lighthouse to your itinerary. You’ll get a new perspective on the area’s rich and rugged past—plus some incredible photo ops along the way.