A few miles from Strömstad lies a waterfall that separates Norway from Sweden. The Älgafallet as it is called in Swedish lies in the...

A few miles from the coastal town of Denía and just off the village of Benidoleig, lies one of the oldest and most interesting caves of...

In the mountains a few miles from Alicante on the Costa Blanca, an underground river - Rio Algar - rises to the surface. Here it forms...