5-15m
    Hawaii, United States
    Honolua-Mokuleia Bay Marine Life Conservation District

    Black Rock - Hawaii

    Best months: Jul–Sep

    Protected Area

    Honolua-Mokuleia Bay Marine Life Conservation District

    Why dive here

    Black Rock - Hawaii is a reef dive where divers can encounter blue sharks, sea turtles and sperm whales. Water ranges 25-28°C, warmest August, September, October.

    Best timeJul–Sep
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBlue Sharks, Sea Turtles and Sperm Whales
    Water25-28°C · warmest August, September, October
    CharacterReef dive · max 5-15m

    Black Rock, right in front of the Sheraton on Ka'anapali Beach, is our go-to spot when we just want to float with some turtles. Don't expect dramatic drop-offs; the maximum depth is a gentle 11 meters, making it incredibly relaxed. It's essentially a lava rock formation poking out from the sand, and the corals here, like the Starry petaloid, add some nice texture to the submerged rocks. What makes Black Rock a standout is the sheer number of green sea turtles. We consistently see five to ten resident turtles gliding around, munching on algae. They're pretty used to divers, so you can often get a close, respectful look as they cruise past. We’ve also spotted Four-lined wrasse zipping through the coral and the occasional Giant moray peeking out from a crevice. Visibility averages a comfortable 19 meters, making it easy to spot everything. It’s a perfect, easy afternoon dive, especially good for newer divers or when you just want a guaranteed turtle fix without a boat trip. We love doing it as a late afternoon shore dive, watching the sun dip as we dry off.

    Typical Black Rock - Hawaii 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.

    Today06:2118:0811h 46m daylightGolden hour 17:38

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    Conditions

    Ocean conditions, forecast and tides for Black Rock - Hawaii

    Black Rock - Hawaii Ocean Conditions

    Monthly averages for Black Rock - Hawaii, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (20.73, -156.95) (9km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    27°C

    81°F · Range: 26.7–28.4°C

    Current Speed

    11.31 cm/s

    Direction: NW (315°)

    Chlorophyll-a

    0.035 mg/m³

    Very clear (oligotrophic)

    Salinity

    35.58 PSU

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

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