The Thunderbolt is a 188-foot cable-laying ship intentionally sunk in 1986 to create an artificial reef. Located approximately six miles offshore from Marathon in the Florida Keys, this intact wreck sits upright on the sandy bottom and has developed into a thriving artificial reef ecosystem and popular dive attraction.
Intermediate
120 ft
Boat
50 ft
Best time today
8 AM - 2 PM
Best day in forecast
Today
2025-06-07
Community-reported visibility
n/a
Warnings
No warnings for today