Klein Bonaire, Bonaire
    Bonaire

    Sebastian Reef

    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 - Sebastian Reef offers some of Klein Bonaire's richest reef 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
    CharacterReef dive
    StandoutExceptional marine biodiversity

    Sebastian Reef is one of those Bonaire sites that often gets overlooked for its flashy neighbours, but we think that’s a mistake. While it shares a name with the nearby restaurant, the dive itself is surprisingly tranquil, especially if you hit it early. The reef starts as a gentle slope, maybe 5-6 metres deep, before giving way to a proper wall that drops to about 16 metres. We love how that deeper section is absolutely covered in massive boulder brain corals and blushing star corals, like giant floral arrangements. Keep an eye out for loggerhead turtles cruising the wall, and we’ve often spotted chain morays peeking out from crevices. You’ll see plenty of angelfish and hogfish here, too. For something a bit different, try hugging the sand flats near the shallows on your way back; we’ve found some tiny pearl blennies and yellowline gobies there. The visibility usually sits around 20 metres, offering clear views of the vibrant hard and soft coral tapestry. It’s a comfortable dive for anyone, really, offering a relaxed pace to soak in the beauty of a healthy Caribbean reef.

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

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    Conditions

    Ocean conditions, forecast and tides for Sebastian Reef

    Sebastian Reef Ocean Conditions

    Monthly averages for Sebastian Reef, 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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