Arraial do Cabo, Brazil
    Reserva Extrativista Marinha De Itaipu

    Mae Ilha Caves

    Best months: Mar–Apr

    Protected Area

    Reserva Extrativista Marinha De Itaipu

    Why dive here

    With 55+ marine species recorded in the area - including humpback whales - Mae Ilha Caves offers some of Arraial do Cabo's richest reef diving. Water ranges 22-28°C, warmest January, February, March.

    Best timeMar–Apr
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeHumpback Whales · 55+ species recorded
    Water22-28°C · warmest January, February, March
    CharacterReef dive

    Mae Ilha Caves is a proper playground, and we love it for its sheer accessibility and surprising density of life. It’s not about grand vistas here; it’s about getting up close and personal. Think squeezing through narrow openings into surprisingly spacious grottoes, the light playing tricks as it filters down from above. You'll often find yourself face-to-face with a curious common octopus, its eyes tracking your every move, or spot a delicate Delalande blenny peeking out from a crevice. The real magic happens when you pause and let your eyes adjust. We've seen entire walls covered in iridescent scissor date mussels, their tiny siphons extended, and the occasional speckled swimming crab scuttling past. Visibility hovers around 4 meters, which for a cave dive, often feels just right, adding to that sense of intimate exploration. This site is fantastic for newer cave divers or anyone who just wants to escape the open water for an hour, offering a genuinely unique experience in Arraial do Cabo. It’s a gentle introduction to overhead environments, with plenty of light and easy exits, proving that depth isn't everything.

    Today05:2517:5512h 30m daylightGolden hour 17:25

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    Conditions

    Ocean conditions, forecast and tides for Mae Ilha Caves

    Mae Ilha Caves Ocean Conditions

    Monthly averages for Mae Ilha Caves, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-23.23, -44.16) (12km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    23°C

    73°F · Range: 17.8–26.6°C

    Current Speed

    8.49 cm/s

    Direction: SW (225°)

    Salinity

    35.38 PSU

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

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