Gamkaskloof

The Gamkaskloof (Afrikaans pronunciation: [ˌamkasˈkluəf]), also known as Die Hel (pronounced [di ˈɦæl], lit. 'The Hell'), is a narrow, isolated valley about 20 kilometres (12.4 miles) long and a maximum of 600 metres (656 yards) wide. The valley is located in the Swartberg mountain range, which is part of the Garden Route District Municipality, Western Cape Province, South Africa.

Data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).