Park & nature

Key Largo National Marine Sanctuary

Check tickets & tours

Some booking links are affiliate links. If you book through them, we may earn a small commission at no extra cost to you. We never let this influence which places we recommend.

The Key Largo National Marine Sanctuary, designated in 1975, safeguards the only living coral reef tract in the continental United States, stretching 25 miles along the Florida Keys. This underwater sanctuary is a haven for divers and snorkelers, offering access to vibrant coral formations, sponge gardens, and diverse marine species such as angelfish, sea turtles, and nurse sharks. The sanctuary's clear, warm waters and well-marked dive sites, like Molasses Reef and the Christ of the Abyss statue, make it a world-class destination. Its preservation ensures that future generations can experience a thriving coral ecosystem.

Don't miss

  • Dive or snorkel at Molasses Reef, known for its abundant marine life and coral formations.
  • Visit the Christ of the Abyss, a submerged bronze statue popular for underwater photography.
  • Explore the Spiegel Grove wreck, a massive artificial reef teeming with fish.

Tickets & tours

Ways to visit Key Largo National Marine Sanctuary

You can usually visit on your own. A tour is worth it for transport, a guide, or combining nearby sights into one day.

More attractions in Key Largo

Planning your trip to Key Largo? See where to eat, more attractions, or build a Key Largo itinerary.