15-35m
    Kaikōura, New Zealand
    Rileys Lookout

    The Sisters

    Best months: Jun–Oct

    Protected Area

    Rileys Lookout

    Why dive here

    With 35+ marine species recorded in the area - including humpback whales, seahorses and sperm whales - The Sisters offers some of Kaikōura's richest drift diving. Water ranges 10-17°C, warmest January, February, March.

    Best timeJun–Oct
    WetsuitA drysuit
    Marine lifeHumpback Whales, Seahorses and Sperm Whales · 35+ species recorded
    Water10-17°C · warmest January, February, March
    CharacterDrift dive · max 15-35m

    The Sisters, two craggy rocks poking out of the water northeast of Barney's Rock, are a Kaikōura favourite of ours, especially when the conditions line up. It’s a 15 to 20 minute ride south from South Bay Marina, and while the average visibility is around 8m, we’ve had days where it’s pushed 15m, letting you really appreciate the scale of those pinnacles. Dropping in, you feel the cool bite of the water, a stark contrast to the vibrancy you find amongst the rocks. We love exploring the crevices and overhangs, often spotting nudibranchs clinging to the walls, their colours popping against the darker rock. Keep an eye out for crayfish tucked into the shadows – they're everywhere here. There’s a certain thrill to finding a curious seal pup darting between the kelp fronds. We’ve even seen dusky dolphins pass by on the surface as we're gearing up, a real treat. This site suits divers who appreciate a good hunt for macro life and aren't put off by cooler water or the occasional surge. It’s a raw, wild kind of beauty, a true taste of New Zealand diving.

    Typical The Sisters Dive Profile

    5m10m15mSafety Stop0m15m max~50 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

    Drift dive - carry a surface marker buoy (SMB) and stay with your group. Brief the current direction before entry.

    Cold water this month (avg 12°C). Drysuit or thick wetsuit (7mm+) recommended.

    Always perform a 3-minute safety stop at 5m before surfacing.

    Today05:4418:4312h 59m daylightGolden hour 18:06

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    Conditions

    Ocean conditions, forecast and tides for The Sisters

    The Sisters Ocean Conditions

    Monthly averages for The Sisters, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-42.41, 173.71) (50km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    12°C

    54°F · Range: 10.8–14.6°C

    Current Speed

    14.42 cm/s

    Direction: SW (213.7°)

    Chlorophyll-a

    0.413 mg/m³

    Moderate productivity

    Salinity

    35.08 PSU

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

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