The Samariá Gorge is a 16 km (10 miles) long canyon in southwest Crete. Walking the Samariá Gorge is extremely popular and more than a quarter million tourists do so each year. The walk takes 4 to 7 hours and passes through forests of ancient cypresses and pines, then cuts between vertical cliffs through the mountains to emerge at Agia Roumeli on the Libyan sea.