Klein Bonaire, Bonaire
    Het Lac

    Cai

    Best months: Apr–Jun

    Protected Area

    Het Lac

    Why dive here

    With 192+ marine species recorded in the area - including barracuda, blue sharks, orcas, sea turtles and sperm whales - Cai offers some of Klein Bonaire's richest diving. Water ranges 27-30°C, warmest September, October, November.

    Best timeApr–Jun
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBarracuda, Blue Sharks, Orcas, Sea Turtles and Sperm Whales · 192+ species recorded
    Water27-30°C · warmest September, October, November
    StandoutExceptional marine biodiversity

    Cai holds a special spot for us, especially on a calm morning. It’s not about dramatic walls or huge pelagics here. Instead, Cai offers this incredible, gentle slope where the light plays beautifully through the water, illuminating the corals. We love drifting along, eyes peeled for the smaller stuff, and Cai truly delivers. You'll find a surprising amount of detail on the reef; we’ve spent ages watching the Pearl Blennies darting in and out, and the Puffcheek Blennies doing their hilarious head bobs. Look for the Bluegold Gobies too, always a treat. The real beauty of Cai is its reliability for a relaxed dive. We often spot Hawksbill Turtles here, just chilling out amongst the Staghorn coral patches. The French grunts gather in big, shimmering schools, sometimes so thick you have to swim through them. If you’re into macro, keep an eye out for the Four Tooth Toothshell and the Antilles Glass-slugs – they’re tiny but totally fascinating. This site is perfect for photographers who appreciate a steady drift and the chance to really focus on the smaller reef inhabitants without fighting current or crowds. It's a great second dive of the day, when you want to take it easy and just soak it all in.

    Today05:2317:1811h 55m daylightGolden hour 16:50

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    Conditions

    Ocean conditions, forecast and tides for Cai

    Cai Ocean Conditions

    Monthly averages for Cai, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (12.14, -68.3) (0km away)

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    October Averages

    Sea Temperature

    30°C

    86°F · Range: 28.9–31.5°C

    Current Speed

    21.1 cm/s

    Direction: NW (328.6°)

    Chlorophyll-a

    0.068 mg/m³

    Very clear (oligotrophic)

    Salinity

    34.64 PSU

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

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