The gorge of Richtis is located in Lasithi Prefecture, on the north side of Crete, between the cities Agios Nikolaos and Sitia. The trail starts just outside the village Exo Mouliana and ends on the Richtis beach, east of the village Kalavros. The total length of the route is approximately 3 kilometers and the elevation difference between the starting point and the beach is about 350 meters. The gorge, even in summer, has enough water, which is used for local crops. The gorge collects the water from the peak Drymias (918m) of Orno range through the streams of Lachanas and Mesa Mouliana which merge near the starting point.