Great Barrier Reef, Australia

    Undine Reef

    Best months: Feb–Mar

    Why dive here

    With 154+ marine species recorded in the area - including hammerhead sharks, sea turtles, tiger sharks and napoleon wrasse - Undine Reef offers some of Great Barrier Reef's richest reef diving. Water ranges 24-30°C, warmest January, February, March.

    Best timeFeb–Mar
    WetsuitNo wetsuit needed, or a rash guard
    Marine lifeHammerhead Sharks, Sea Turtles, Tiger Sharks and Napoleon Wrasse · 154+ species recorded
    Water24-30°C · warmest January, February, March
    CharacterReef dive
    StandoutExceptional marine biodiversity

    Undine Reef is one of those spots in the northern GBR that just *feels* right. It’s not about huge pelagics here, though you might catch a shark or a cruising manta if you’re lucky. For us, Undine is all about the coral architecture and the smaller, more intimate reef life. We love drifting along the reef edge, where the humps of *Turbinaria* coral rise like miniature cities, studded with vibrant patches of lettuce coral and smooth cauliflower coral. Keep an eye out for the residents: the big, bold rainbow parrotfish chomping away, leaving trails of sand in their wake, and the elegant Desjardin’s Sailfin Tangs weaving through the branching staghorn. We often find foxface rabbitfish tucked amongst the plate corals, and if you’re patient, you might spot a cloth-of-gold cone snail on the sandy patches. The light here can be incredible on a sunny day, painting everything in a kaleidoscope of blues and greens. It's a fantastic site for photographers focusing on macro and wide-angle reef shots. Come here for a relaxed, visually rich dive. It’s perfect for divers who appreciate the intricate beauty of a healthy coral reef and the smaller, captivating creatures that call it home.

    Safety Notes

    Strong currents typical this month (avg 30 cm/s). Good buoyancy control essential.

    Today05:5318:1612h 23m daylightGolden hour 17:48

    Nearest Dive Centres to Undine Reef

    Dive shops near Undine Reef

    View all dive centres in Great Barrier Reef

    Reviews for Undine Reef

    Sign in to write a review

    Conditions

    Ocean conditions, forecast and tides for Undine Reef

    Undine Reef Ocean Conditions

    Monthly averages for Undine Reef, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-15.65, 145.72) (5km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    26°C

    80°F · Range: 24.5–29°C

    Current Speed

    30.07 cm/s

    Direction: S (183.8°)

    Chlorophyll-a

    0.057 mg/m³

    Very clear (oligotrophic)

    Salinity

    35.08 PSU

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)

    Plan & book

    Ways to dive Great Barrier Reef, from day trips to liveaboards.

    Day trips & courses

    via GetYourGuide

    Guided dives, courses and snorkel trips with instant booking.

    Find dive trips in Great Barrier Reef

    Places to stay

    via Booking.com

    Hotels and dive resorts near Great Barrier Reef.

    Search stays in Great Barrier Reef

    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 Undine Reef

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

    Back to Great Barrier Reef