Bay of Islands, New Zealand
    Oke Bay

    Boulder Garden

    Best months: Jan–Mar

    Protected Area

    Oke Bay

    Why dive here

    With 163+ marine species recorded in the area - including blue sharks, blue whales, dolphins, great white sharks and hammerhead sharks - Boulder Garden offers some of Bay of Islands's richest reef diving. Water ranges 16-22°C, warmest January, February, March.

    Best timeJan–Mar
    WetsuitA 5mm wetsuit
    Marine lifeBlue Sharks, Blue Whales, Dolphins, Great White Sharks and Hammerhead Sharks · 163+ species recorded
    Water16-22°C · warmest January, February, March
    CharacterReef dive
    StandoutExceptional marine biodiversity

    Boulder Garden is one of our favourites in the Bay of Islands, especially when we’re after a relaxed, meandering dive. Don’t let the 16-meter max depth fool you; there’s plenty to explore. We love the way the light filters through the kelp, dappling the large, sponge-covered boulders that give the site its name. It’s a genuinely pretty place, a riot of orange and purple sponges clinging to the rock. You’ll want to take your time here, poking around the nooks and crannies. We’ve had some fantastic encounters with Longfinned Triplefins darting between the rocks and spotted the odd Clown Toado hiding in plain sight. Keep an eye out for nudibranchs – they’re often tucked away amongst the various Neptune's necklace seaweed. Visibility here is usually great, often pushing 20 metres, so you get a good sense of the gentle slope as you descend. It's a perfect site for photographers or anyone who enjoys a slower pace, just soaking it all in. We often combine it with a surface interval spent watching Sooty Shearwaters dip and dive.

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    Conditions

    Ocean conditions, forecast and tides for Boulder Garden

    Boulder Garden Ocean Conditions

    Monthly averages for Boulder Garden, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (-35.24, 174.22) (2km away)

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    October Averages

    Sea Temperature

    16°C

    61°F · Range: 14.9–16.8°C

    Air Temperature

    16°C

    60°F

    Wind Speed

    7.43 m/s

    14.4 knots

    Atmospheric Pressure

    1019.1 hPa

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

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