We had decided to split the way back, so we booked tickets for the natural cave known as Cuevas del Cerro del Águila. They are located in the mountain range Sierra de Gredos, quite literally in the middle of nowhere. They were discovered by accident in 1963, and have been open to the public since 1964.

The geological construction dates back 500 million years, from the time when the area was a dolomite-filled marine platform. When Spain emerged as dry land, rivers started flowing, dissolving part of the rocks, and created de underground halls. Mineral-saturated water dripping creates a wide variety of speleothems – stalactites, stalagmites, columns or stalagnates, flowstones…

It was a really cool thing to see – I’ve been to caves before but this one was the most impressing I’ve visited in a while.

Afterwards we just drove off back home for a late lunch, a nap, and getting ready for the work week.