The tourists were visiting a volcanic region in the Afar region, which is known for being one of the hottest places on earth. The province's rock-strewn hills give way to vast deserts below sea level, dry river-beds and acacia thorn trees dot the landscape. Banditry is widespread. Foreigners who venture there usually include researchers, aid workers and adventure tourists visiting wonders such as the Danakil Depression, with its ancient salt mines and volcanoes.