Dive & Snorkel Location
Grecian Rocks is a shallow reef located just ¾ of a mile south-southwest of the Christ of the Abyss, in the heart of Key Largo's diving scene. At a depth of 4 to 6 feet in many areas, it's a perfect spot for beginners and experts alike.
The entire area spans over half a mile, ranging in depth from 4 to 25 feet. The shallow depth is what makes it so popular — snorkelers flock here to explore stunning strands of elkhorn coral and bountiful tropical fish. A beautiful cluster of star coral on the shoreward side provides a spectacular underwater vista that is simply unforgettable.
The white sand plateau that joins the reef is home to queen conch and many of the colorful fish that make their homes in the area. During low tide, part of the area is awash, providing a truly unique snorkeling experience. Grecian Rocks also contains a Sanctuary Preservation Area (SPA) covering .3 square nautical miles.
One of the shallowest reef sites in the sanctuary — perfect for first-time snorkelers and families with children.
Stunning strands of elkhorn coral and star coral formations create a vibrant underwater landscape.
Protected zone ensuring the reef's long-term health — one of the most studied reefs in the Florida Keys.
At a Glance
Good to Know
Yes! With depths as shallow as 4 to 6 feet in many areas, Grecian Rocks is one of the best beginner-friendly snorkeling sites in the Florida Keys.
The SPA at Grecian Rocks is a federally designated zone for the protection and preservation of delicate marine life. It's important to avoid touching the coral — even the slightest contact can cause harm.
Tours That Visit This Site
$79 | 3 Hours | 2 Stops
The original park trip and our best value. Two prime shallow reef sites, including the Christ of the Abyss on virtually every trip, weather permitting.
$90 | 3.5 Hours | 3 Stops
A high-energy adventure for active snorkelers. We visit three distinct sites — including Christ of the Abyss — to maximize your chances of seeing wildlife.
Summer tours are filling up fast — book your trip to the John Pennekamp reefs today.
