Hawaii, United States
    Manele-Hulopoe Marine Life Conservation District

    Cathedral II

    Best months: Jan–Dec

    Protected Area

    Manele-Hulopoe Marine Life Conservation District

    Why dive here

    Cathedral II is a reef dive where divers can encounter blue sharks, sea turtles and sperm whales. Water ranges 26-29°C, warmest August, September, October.

    Marine lifeBlue Sharks, Sea Turtles and Sperm Whales
    Water26-29°C · warmest August, September, October
    CharacterReef dive

    The FV Maritime Reefer is less a wreck, more a scattering of interesting metal shards. Sunk in '81, it’s taken a beating over the decades, storms have really spread it out, so don’t come expecting a ship you can swim through. What you get instead is a proper habitat, and we love that. Those scattered plates and beams are home to some chunky moray eels, and we’ve seen countless lionfish lurking in the shadows. Visibility often hovers around 5 meters, which adds a spooky, intimate feel as you glide over the debris. It’s shallow, only down to 18m, making it a good wreck experience for divers not looking for extreme depths. Keep an eye out for the big parrotfish, Schlegel's often cruise by, and we’ve spotted humphead wrasse here too. If you’re into the idea of a wreck becoming a natural reef over time, the Reefer is our pick.

    Today06:1018:5212h 42m daylightGolden hour 18:23

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    Conditions

    Ocean conditions, forecast and tides for Cathedral II

    Cathedral II Ocean Conditions

    Monthly averages for Cathedral II, sourced from Copernicus Marine satellite data

    August Averages

    Sea Temperature

    28.48°C

    83°F

    Current Speed

    7.28 cm/s

    Direction: N (344.1°)

    Chlorophyll-a

    0.037 mg/m³

    Very clear (oligotrophic)

    Salinity

    34.85 PSU

    Data sources: Copernicus Marine Service (EU)

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