Out of the dozens of grottos that populate Portugal’s southern coastline, there’s one that stands out, the Benagil Caves. Just like any other sea cave in the Algarve region, this one was shaped by the pounding Atlantic waves. Yet, unlike other grottos, the Benagil cave bathes in light thanks to a natural skylight. Erosion has not only hit the cave at the base of the cliff, but erosion has also taken place at the top where rainfall has caused the softer segments of limestone to erode and collapse. This beautifully…
