Tongatapu, Tonga
    Mounu Reef

    Hakau Ualanga 'Uta

    Best months: Dec–Apr

    Protected Area

    Mounu Reef

    Why dive here

    With 354+ marine species recorded in the area - including barracuda, giant moray eels, humpback whales, sperm whales and lionfish - Hakau Ualanga 'Uta offers some of Tongatapu's richest diving. Water ranges 23-29°C, warmest January, February, March.

    Best timeDec–Apr
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBarracuda, Giant Moray Eels, Humpback Whales, Sperm Whales and Lionfish · 354+ species recorded
    Water23-29°C · warmest January, February, March
    StandoutExceptional marine biodiversity

    Hakau Ualanga ‘Uta is one of those spots that just sticks with you. We love diving here, mostly for the sheer density of the smaller stuff. You’ll be finning along, and suddenly you’re in a cloud of blue and gold fusiliers so thick it’s hard to see through them. They just swirl around you. We’ve spent whole safety stops just watching the pink anemonefish darting through their homes, their colours popping against the deeper blues. It’s not a drift dive. Think more slow exploration. We usually find ourselves getting really close to the reef, spotting dwarf atomgobies on the sand or the brilliant red hawkfish perched on corals, completely unbothered by us. Keep an eye out for the blunt-head parrotfish, too; their grazing leaves distinct marks. If you’re into macro and just soaking in the reef's everyday rhythm, this place is our favourite. It's calming, a place to really slow down and appreciate the details.

    Today05:1417:4212h 28m daylightGolden hour 17:13

    Reviews for Hakau Ualanga 'Uta

    Sign in to write a review

    Conditions

    Ocean conditions, forecast and tides for Hakau Ualanga 'Uta

    Hakau Ualanga 'Uta Ocean Conditions

    Monthly averages for Hakau Ualanga 'Uta, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (-21.13, -175.19) (1km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    24°C

    76°F · Range: 23.1–26.4°C

    Air Temperature

    23°C

    74°F

    Wind Speed

    8.27 m/s

    16.1 knots

    Atmospheric Pressure

    1015.7 hPa

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data

    Plan & book

    Ways to dive Tongatapu, from day trips to liveaboards.

    Day trips & courses

    via GetYourGuide

    Guided dives, courses and snorkel trips with instant booking.

    Find dive trips in Tongatapu

    Places to stay

    via Booking.com

    Hotels and dive resorts near Tongatapu.

    Search stays in Tongatapu

    Dive insurance

    Most travel insurance excludes or limits scuba. Check what you need before you go.

    Dive insurance explained

    Partner links: we may earn a commission if you book, at no extra cost to you. How we make money

    Where to Stay near Hakau Ualanga 'Uta

    Prices from Booking.com. We may earn a commission at no extra cost to you.

    Back to Tongatapu