For millions of years, the geological upheavals are reflected strongly in the intense relief of Crete. While mountains rose, the river water continued its corrosional route through the limestone terrain, forming today's "land of gorges", Crete. With more than 400 canyons, Crete hosts the largest number of gorges in Greece. Many travel agencies offer packages for gorge trekking and there is are several hiking and mountaineering clubs based in Heraklion, Chania, Rethymnon, Agios Nikolaos, Sitia, Ierapetra and Mires.
Cretan rivers meet large faults and steep descents during their course through the canyons, forming hundreds of small and high waterfalls. Crossing gorges of Crete with high waterfalls is possible only by using technical equipment. Appropriate training in canyoneering techniques can be offered by specialist companies on the island. The most popular technical canyons of Crete include the imposing gorge Ha, Tsoutsouras, Kalami, the gorge of Arvi (which after an 80m high fall turns into a dark underground river) and many more.
Richtis Gorge 
The amazing gorge of Richtis is located in Lasithi Prefecture, on the north side, between Agios Nikolaos and Sitia. It starts just outside the village Exo Mouliana and ends at the Richtis beach, east of the village of Kalabro. 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 by locals.
Samaria Gorge 
The Samaria Gorge is the longest trekking gorge in Europe and also the most famous of all. Thousands of tourists flock here daily in the summer season to walk from the top to the bottom. For many visitors, it is the sole purpose of their visit to Crete. The length of the gorge reaches 18km and takes almost 4-7 hours to hike from Omalos to Agia Roumeli, depending on trekking speed.
Agios Antonios Gorge at Patsos 
The gorge of Patsos or Agios Antonios is located 8 km southwest of the Monastery of Arkadi, in the heart of the lush province of Amari. The water of the gorge is poured into the dam of Potamoi. Trekking in the gorge is very easy since it is managed by the Forest Service.
The Gorge of Kourtaliotis is located 22km south of Rethymno and has a length of 3km. It is one of the most spectacular natural attractions of Rethymnon. It starts from the village of Koxare and flows between the mountains Kouroupis (984 m) and Xiro Oros (Dry Mountain - 904m). The huge cliffs of the canyon reach a height of 600 meters and are full of openings and caves, where significant fauna species live.
The Gorge of Mylonas or Agios Ioannis is located 18km east of Ierapetra. It starts near the village Agios Ioannis, at an altitude of 500m, and ends at the beach of Kakia Skala.
Imbros Gorge 
Imbros Gorge is located in the province of Sfakia and is the third most visited gorge in Crete, following Samaria Gorge and Agia Irini by Sougia. The scenery is beautiful and the low difficulty makes the descent of Imbros ideal for families with children. The length of the gorge is 11 km and the course lasts 2-3 hours.
The deepest gorge in Chania is the gorge of Aradena. The 138-meter-deep gorge is ideal not only for sightseeing or hiking but for bungee jumping as well. Trekking inside the canyon till the exit on the majestic Marmara beach is an unforgettable experience for those who attempt the descent of the canyon.
The gorge of Agios Nikolaos, Gafaris or Rouvas is bounded by the peaks of Ambelakia from east and Samari from west. This is the most important gorge of Psiloritis and central Crete and took its name from the homonymous Byzantine church in the south entrance. This is an ecosystem with rich flora and fauna, smaller canyons and interesting geological formations and cliffs of rare beauty.
