Klein Bonaire, Bonaire
    Bonaire

    Kalli’s Reef (19)

    Best months: Apr–Jun

    Protected Area

    Bonaire

    Why dive here

    With 192+ marine species recorded in the area - including barracuda, blue sharks, orcas, sea turtles and sperm whales - Kalli’s Reef (19) offers some of Klein Bonaire's richest drift 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
    CharacterDrift dive
    StandoutExceptional marine biodiversity

    Kalli’s Reef feels like a secret, even though it’s just a short boat ride to Klein Bonaire. We love dropping in here, watching the sand ripple under the boat before the reef wall comes into view. The coral formations aren't the biggest you'll ever see, but they're healthy and vibrant, especially the big heads of blushing star and lettuce coral. We often spot schools of round scad and jacks cruising past the wall, and the doctorfish and hogfish are almost always milling about. Keep an eye out for the smaller stuff too, like the yellowline gobies peeking from their holes or a shy pearl blenny. The average depth here is around 12-15m, making it a perfectly relaxed second dive. We’d suggest going early in the morning before any wind picks up, when the light really makes the blues pop.

    Safety Notes

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

    Today05:2317:1911h 55m daylightGolden hour 16:50

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    Conditions

    Ocean conditions, forecast and tides for Kalli’s Reef (19)

    Kalli’s Reef (19) Ocean Conditions

    Monthly averages for Kalli’s Reef (19), 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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