Caribbean Coast, Costa Rica
    Cabo Blanco

    El Secreto

    Good diving all year

    Protected Area

    Cabo Blanco

    Why dive here

    With 217+ marine species recorded in the area - including dolphins, humpback whales, orcas, sea turtles and pufferfish - El Secreto offers some of Caribbean Coast's richest cave diving. Water ranges 29-31°C, warmest March, April, May.

    Best timeYear-round
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeDolphins, Humpback Whales, Orcas, Sea Turtles and Pufferfish · 217+ species recorded
    Water29-31°C · warmest March, April, May
    CharacterCave dive
    StandoutExceptional marine biodiversity

    El Secreto, off Costa Rica’s Caribbean coast, has a reputation for keeping you guessing. We usually find ourselves exploring a shallow reef, topping out at around 17 metres, though you’ll often find yourself shallower. Visibility averages around six metres, which isn't the best, but we've seen it push ten on a good day, so don't write it off. What makes El Secreto our favourite here isn't the expansive vistas, but the chance to really slow down and focus. This site is all about the little things. We've spent entire dives here within a small area, spotting Roughbar Frogfish tucked away or watching Antler Dragonets dart across the sand. Look closely for Yellow Snake Eels peeking out, or the striking colours of a Blackfin Soapfish. Currents can be unpredictable; sometimes you'll be zipping along, others it's a calm drift, perfect for macro photography. We'd suggest going with a guide who knows the site well – they're key to uncovering its tiny wonders. It suits divers who appreciate detailed observation over wide-angle views, and who don't mind a bit of a treasure hunt.

    Safety Notes

    Overhead environment - never enter without proper cave/cavern training, redundant equipment, and a guideline.

    Today05:2917:2711h 58m daylightGolden hour 16:59

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    Conditions

    Ocean conditions, forecast and tides for El Secreto

    El Secreto Ocean Conditions

    Monthly averages for El Secreto, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (9.78, -84.89) (48km away)

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    October Averages

    Sea Temperature

    29°C

    85°F · Range: 27.9–31.1°C

    Current Speed

    5 cm/s

    Direction: N (0°)

    Chlorophyll-a

    0.142 mg/m³

    Clear water

    Salinity

    28.81 PSU

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

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