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Explore Sombrero Reef — One of the Florida Keys’ Most Beautiful Snorkeling Spots

Sombrero Reef is one of the most popular and vibrant snorkeling destinations in the Florida Keys. Located just offshore from Marathon, this protected reef is known for its crystal-clear water, colorful marine life, and easy access for snorkelers of all experience levels.

Whether it’s your first time snorkeling or you’re a seasoned explorer, Sombrero Reef offers an unforgettable underwater experience.

Protecting what we love

Mooring at the Reef

When we arrive at Sombrero Reef, our catamaran secures to a designated mooring ball instead of dropping an anchor.

These mooring buoys are permanently installed and connected to the ocean floor in a way that prevents damage to the fragile coral reef below. By using them, we avoid dragging anchors across living coral, which helps preserve this incredible ecosystem for future generations.

No anchoring. No reef damage. Just responsible, unforgettable snorkeling.

Fun Facts about the Reef

  • At Sombrero Reef, you may encounter:

    • 🐠 Tropical fish like parrotfish, angelfish, and snapper
    • 🪸 Living coral formations
    • 🐢 Sea turtles (occasionally!)
    • 🌊 Clear, shallow reef areas perfect for beginners

    The reef is part of the Florida Keys National Marine Sanctuary, making it a protected and thriving ecosystem.

  • 🌊 Why Sombrero Reef is Special

    • ✔ One of the most accessible reefs in Marathon
    • ✔ Shallow areas perfect for beginners
    • ✔ Clear water with excellent visibility
    • ✔ Protected marine environment
    • ✔ Close to the iconic Sombrero Reef Lighthouse

    This combination makes it one of the best snorkeling spots in the Florida Keys.

  • 🗼 The Sombrero Reef Lighthouse

    The historic Sombrero Reef Lighthouse has stood since 1858 and serves as a landmark for the reef. It’s one of the most recognizable sights in Marathon and adds to the unique experience of visiting this area.

    Snorkeling near the lighthouse offers both beautiful underwater views and an iconic backdrop above the water.

  • 🌿 Protecting the Reef

    Sombrero Reef is a protected ecosystem, and we are committed to helping preserve it.

    To protect the reef:

    • 🚫 No spray sunscreen (reef-safe lotion only)
    • ❌ Do not touch or stand on coral
    • 🐠 Respect marine life
    • 🌊 Follow crew guidance at all times

    By following these guidelines, you help keep the reef healthy for future visitors.

  • Where is Sombrero Reef?

    Sombrero Reef is located approximately 6 miles offshore from Marathon, near the base of the iconic Seven Mile Bridge. Just a short boat ride from our dock, this protected reef sits within the Florida Keys National Marine Sanctuary and offers some of the clearest, most vibrant snorkeling waters in the area.