5-15m
    Intermediate
    Port Vila & Efate, Vanuatu
    Hideaway Island

    Cathedral Cave

    Best months: Jan–Dec

    Protected Area

    Hideaway Island

    Why dive here

    With 306+ marine species recorded in the area - including blue sharks, dugongs, dwarf minke whales, eagle rays and giant moray eels - Cathedral Cave offers some of Port Vila & Efate's richest cave diving. Water sits around 29°C.

    Marine lifeBlue Sharks, Dugongs, Dwarf Minke Whales, Eagle Rays and Giant Moray Eels · 306+ species recorded
    Water29°C · warmest January, February, March
    CharacterCave dive · max 5-15m
    StandoutExceptional marine biodiversity

    Cathedral Cave, just outside Port Vila, is one of our favourite easy cave dives in Vanuatu. It's not a deep dive, usually staying between 5 and 15 metres, but what it lacks in depth it makes up for with sheer atmosphere. As you swim in, the opening is wide and inviting, then narrows a bit before opening into this massive chamber. The real magic happens when the sunlight shafts down through the opening, cutting through the slightly silty water like spotlights in a smoky theatre. It’s absolutely captivating. We love hovering in the middle of the main chamber, just watching those light beams dance. There’s an air pocket at the top, too, where you can surface and have a quick peek around. We’ve found the best time to catch the light show is mid-morning, when the sun is higher in the sky. Keep an eye out for the smaller stuff clinging to the walls, like blennies and colourful wrasse. It’s an intermediate dive, really, because while it’s not technically demanding, you do need to be comfortable in an overhead environment. It’s perfect for divers looking for something a bit different, a proper cavern experience without the need for advanced cave certs. If you’re a photographer, bring your wide-angle lens.

    Typical Cathedral Cave Dive Profile

    5mSafety Stop0m5m max~60 min estimated bottom time

    Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.

    Safety Notes

    Overhead environment - never enter without proper cave/cavern training, redundant equipment, and a guideline.

    Today06:0117:3911h 38m daylightGolden hour 17:10

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    Conditions

    Ocean conditions, forecast and tides for Cathedral Cave

    Cathedral Cave Ocean Conditions

    Monthly averages for Cathedral Cave, sourced from NOAA buoy data - nearest station: Open-Meteo grid (-17.72, 168.31) (0km away)

    August Averages

    Sea Temperature

    29.02°C

    84°F

    Air Temperature

    22.93°C

    73°F

    Wind Speed

    6.18 m/s

    12.0 knots

    Atmospheric Pressure

    1015.4 hPa

    Based on 5 years of monitoring data · Data sources: NOAA NDBC

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