Medes Islands, Spain

    Ker-Bihan

    Best months: Jun–Sep

    Why dive here

    With 77+ marine species recorded in the area - including blue sharks, dolphins, ocean sunfish (mola mola), octopuses and sea turtles - Ker-Bihan offers some of Medes Islands's richest diving. Water ranges 14-24°C, warmest July, August, September.

    Best timeJun–Sep
    WetsuitA 3mm full wetsuit
    Marine lifeBlue Sharks, Dolphins, Ocean Sunfish (Mola Mola), Octopuses and Sea Turtles · 77+ species recorded
    Water14-24°C · warmest July, August, September
    StandoutRich in charismatic marine life

    Ker-Bihan. Even the name sounds a bit mysterious, doesn't it? This is one of our favourite spots in the Medes Islands, a place that, frankly, punches above its weight. We love it because it’s a dive that rewards slow exploration. You won’t find dramatic drop-offs here, but instead, a maze of rocks and gullies that feel like you’re exploring an ancient, submerged city. Keep your eyes peeled. We’ve had incredible encounters with triggerfish here, often hovering curiously as you pass. Look into the cracks and under ledges for the shy Mediterranean beadlet anemones, their tentacles retracting at the slightest disturbance. The real joy is spotting the smaller, more unusual stuff: we’ve seen spotted dragonets flitting over the sand and even a camouflaged black-bellied angler if you’re lucky enough to spot its lure. The green wrasse are practically residents, bold and colourful, and the bushy coral adds a splash of unexpected texture to the rocky landscape. Diving Ker-Bihan often means a gentle drift, letting the slight current guide you through the formations. It’s a site that truly suits the keen observer, the diver who finds beauty in the subtle details rather than the big pelagics.

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    Conditions

    Ocean conditions, forecast and tides for Ker-Bihan

    Ker-Bihan Ocean Conditions

    Monthly averages for Ker-Bihan, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (43.2, 5.22) (37km away)

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    October Averages

    Sea Temperature

    20°C

    69°F · Range: 17.4–22.8°C

    Current Speed

    9.85 cm/s

    Direction: SW (246°)

    Chlorophyll-a

    0.182 mg/m³

    Clear water

    Salinity

    38.21 PSU

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

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