
Wallis Island (Uvea) · Wallis and Futuna · Cave & cavern
Lava Tunnel
A 100 m lava tube from the island's volcanic origins
Area photo: Anna Vinet · CC BY-SA 4.0
The Lava Tunnel is a submerged cave in the southwest of the Wallis lagoon, between Passe Avatolu and the south pass. Divers come to swim through a tube left by the island's volcanic origins, a natural feature that most certified divers can reach.
Also known as Tunnel de lave.
Where it is and how deep
13.3300° S, 176.2742° WApproximate position — the dashed circle shows where the site lies; your operator's briefing has the mooring.
The dive
The dive centres on a submerged lava tube about 100 m (328 ft) long, lying at a depth of 18 m (59 ft). Its walls show the volcanic origins of the island in close detail, and the depth keeps it within reach of most certified divers.
Marine life and season
The sources we used don't single out particular species here.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Good | Good | Good | Good | Good | Good | Good | Good | Good | Good | Good | Good |
Season follows Wallis Island (Uvea): Diving runs all year; the sea is warmest in March and April at about 30 °C and coolest in August near 28 °C.
Sources
- 101 Best Things to Do in Wallis & Futuna — WallisandFutunaPocketGuide.com
More dive sites in Wallis Island (Uvea)
The verified anchor from Samuel Wallis's 1767 expedition
Whaling-ship anchors below a soft-coral drop-off
Drift
Barracuda and trevally circling divers in the current of the west-coast pass
Lagoon
Coral bommies that grow larger the further the route goes
Wreck
Wheelhouse dials still visible on 1944 US military barges
Similar dives elsewhere
A half-flooded cave chamber entered only from underwater
Four linked sinkholes with tunnels out to the reef
Choose a route through tunnels from a giant reef hole
A dark cave you can surface inside, under large stalactites

