Crete is home to many gorges, most of which can be hiked. Samaria Gorge, the longest in Europe (16 km) is no doubt the most challenging gorge to walk. A shorter, less challenging alternative is Imbros Gorge, which runs parallel to Samaria. Following the Battle of Crete during World War II, thousands of Allied troops walked through Imbros gorge to reach Hora Sfakion, where they were evacuated to Egypt.