

Best for intermediate divers, 5-25m, boat entry, moderate current.
The Tunnel in the Matavai Area is a distinctive dive site featuring a cavernous tunnel swim-through that exits into the deep blue. Divers typically descend over a sandy bottom to explore an area of soft corals before navigating the tunnel structure. The site encompasses reef, wall, and cavern topography at depths ranging from 5 to 25 metres, with an average of 15 metres. Access is by boat, located 500 metres from shore. Conditions include moderate currents and visibility between 20 and 50 metres. Species recorded around this area include whitetip reef sharks, day octopus, various moray eels, and numerous reef fish such as wrasses, angelfish, and surgeonfish.
-19.05301, -169.92282
This rocky dive involves navigating a narrow curved tunnel that leads to a light chamber.
Access info coming soon
Recorded at this site
Depth
5-25m
Visibility
20-50m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
26-29°C
Current
Moderate
Typical Dive
45 min
Best Time
Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
Species recorded around this area include whitetip reef sharks, day octopus, giant and painted moray eels, emperor angelfish, and various reef fish like wrasses, surgeonfish, and pufferfish.
No, this site is rated for intermediate divers due to the overhead environment of the tunnel and the depths involved.
The site ranges from 5 to 25 metres in depth, with an average depth of 15 metres.
The Tunnel is a boat dive located 500 metres from the shore, and a boat is required to access the site.
This site is designed for diving, particularly given the depth and the overhead tunnel environment.
Diving at The Tunnel in Alofi requires the following certifications: Open Water. Always dive within your training limits.
A 3mm wetsuit is recommended for diving at The Tunnel in Alofi. Water temperatures range from 26°C to 29°C.
The best months to visit The Tunnel in Alofi are February, March, April, May, June, July, August, September, October, and November. Conditions outside these months can still be good but are less predictable.
Expect moderate currents at The Tunnel in Alofi. Good buoyancy control and some drift diving experience is helpful.
Visibility at The Tunnel in Alofi typically ranges from 20 metres to 50 metres. Conditions vary with weather, tides, and seasons.