Big Tunnels
About Big Tunnels
This site features a limestone pinnacle with a large tunnel accessed through an opening in the reef. The route passes through the tunnel and exits beneath a coral archway that leads out to a steep wall. Divers may encounter horse-eyed jacks, turtles, and pufferfish along the descent and around the reef structure.
Where Is Big Tunnels?
Big Tunnels Planning Details
Depth range, seasonality, and planning context.
Reported Depth
32m+
Depth Note
Descent to about 32 m (105 ft) is described.
Safety & Access At Big Tunnels
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Includes a tunnel penetration through an opening in the reef and reaches around 32 m; appropriate training, gas planning, and comfort in overhead environments are important.
Local Intel For Big Tunnels
Community notes to help plan your visit.
Scuba
The dive includes a tunnel swim-through entered via a hole in the reef, descending to roughly 32 m before exiting toward a steep wall.
Big Tunnels Dive Conditions Planner
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Exposure Profile at Big Tunnels
Directional shelter context for incoming swell.
Recent Logged Visits At Big Tunnels
Community dive logs and visit reports for this site.
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Dive Spot Log Averages At Big Tunnels
Average conditions based on logged dives & visits.
Big Tunnels Guide - Sources and Updates
Last Updated
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