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Sombrero Reef
About This Site
Sombrero Reef is a spectacular natural reef system marked by a historic lighthouse in the Florida Keys National Marine Sanctuary. Located off Marathon, this vibrant reef offers diverse coral formations, abundant marine life, and excellent visibility, making it one of the most popular dive destinations in the Middle Keys.
Difficulty
Beginner
Max Depth
50 ft
Type
Boat
Typical Visibility
60 ft
Conditions Summary
Best time today
6PM - 10PM
GOOD
Best day in forecast
Thursday
GREAT
2025-08-07
Community-reported visibility
n/a
Warnings
No warnings for today
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