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A striking natural sea cave carved into the golden limestone cliffs of the Algarve coastline. This dome-shaped grotto is famed for its perfectly circular oculus skylight, a natural aperture in the rock ceiling that channels sunlight directly onto the pale sandy floor below, illuminating the cavern in shifting hues of amber and gold.

Accessible only by sea, the cave reveals its full splendour to those arriving by boat, kayak, or paddleboard through the sculpted sandstone arches that frame the entrance. The Atlantic slips gently across the cave’s interior sands, its turquoise clarity reflecting off the curved walls in a constant interplay of light and water.

Formed over millennia by the relentless work of wind and waves, the cave stands as one of the most photographed natural wonders in Portugal, drawing visitors from around the world to witness its cathedral-like interior and the theatrical shaft of daylight piercing its ceiling above the sun-dappled shore.