Diving Tanna – Blue Cave, Outer Reefs & Volcano

    island
    5 dive sites
    Best: April, May, June
    $70-$350/day

    About Tanna – Blue Cave, Outer Reefs & Volcano

    Tanna is Vanuatu's adventure island, famous for the accessible Yasur volcano and a surprising variety of dives. The Blue Cave is a limestone cavern reached by a short swim-through, lit by intense blue refraction and home to glassfish and flashlight fish, while the Tanna Outer Reef Wall is a pristine drop-off with grey and silvertip sharks, tuna and gorgonians. White Grass Reef is a calm garden for training and macro, and Shark Alley is a baited dive with grey reef sharks, whitetips and trevally at 25 to 35 m. The black-sand slopes near Yasur offer unique volcanic macro dives with garden eels and seahorses. Tanna blends frontier diving with one of the most spectacular land experiences in the Pacific.

    Highlights

    • Blue Cave: a blue-lit limestone cavern with glassfish and flashlight fish
    • Tanna Outer Reef Wall: a pristine shark and gorgonian drop-off
    • White Grass Reef: a calm garden for training and macro
    • Shark Alley: a baited dive with grey reef sharks and trevally
    • Yasur Volcano Area: black-sand macro dives near an active volcano
    20%
    Beginner Sites
    40%
    Intermediate
    40%
    Advanced

    Getting There

    Fly into White Grass Airport (TNU) from Port Vila, then transfer to Lenakel or the east-coast lodges. Dive sites are reached by boat in 20 to 40 minutes or, for the Blue Cave and White Grass, by a short shore or shallow entry. The volcano is a separate land excursion.

    Local Transport

    Dive-centre boats, Resort transfers, Taxis, Rental 4WD, Local trucks, Walking