Heraklion hosts many canyons, most of which cross the ranges of Psiloritis and Asterousia. Asterousia has wonderful hiking canyons, some of the most important being Agiofarago, Martsalo and Trafoulas. However, the most famous gorge is the canyon Gafaris at Psiloritis, crossing the magnificent oak wood of Rouvas. Other canyons of Psiloritis are the gorge of Kroussonas, through which passes the Minoan path to the Idaean Cave, the gorge Vromonero, the gorge Vorizano and the two small canyons of Asites (Saint Charalambos and Saint Anthony). Near Heraklion city, there are the lush canyons of Karteros, Kounavi, Sylamos, Almyros and Venerato. Moreover, the western slopes of Lassithi Mountains host the canyons of Roza, Ambelos, Apotyposi and the river Aposelemis by Hersonissos.
Apart from reachable gorges, Heraklion is home to some very popular technical canyons such as the imposing canyon of Arvi, which after an 80m high fall turns into a dark underground river. Especially the area of Tsoutsouras and Keratokambos is home to many steep canyons that have been equipped with bolts and anchors for training new canyoners.
Eligas Gorge 
The gorge of Eligas is a monument of natural beauty located on the west side of the mountain Koupa near the village Miliaradon by Embaros. It is actually a high waterfall with nine rapels, ideal for canyoning. The difference of altitude between the entrance and the exit is about 230m.
The Gorge of Ambelos is located southeast of Gonies village (Hersonissos Municipality), just about one km from the southern limits of the village. The approach is easy from the rural road, which runs through the gorge, along the bed of a tributary of Aposelemis river.
The canyon of Panagia (Virgin Mary), also known as Kalami I is parallel to the gorge Xerofarago or Kalami II and takes its name after the former monastery of Panagia Keralimeniotissa located at its exit.
West of the village Rogdia a small gorge is formed that exits at the area of Paliokastro. It initially starts at position Koukos, where we meet the ruins of an old watermill.
The canyon of Tsoutsouras is located in Tsoutsouras village and is one of the many inaccessible canyons of the area. It starts at position Sfakias and it's exit is located near the settlement, in Larinaki area, and at first glance it causes awe.
Canyon Kakoperatos located 10km south of Ahendrias village, on the eastern side of Asterousia Mountains. The distance from Heraklion is approximately 66km. The gorge is only crossed with technical equipment.
The wild and inaccessible canyon of Mesosfini is located 55km south of Heraklion city, in an isolated area west of the seaside village of Treis Ekklisies. Its entrance is located at a height of 450m, near the village of Mournies and Prinias, in the Asterousia Mountains. At its exit, 2km south, it is formed the majestic beach of Voidomatis, which can be accessed via a dirt track from Tris Ekklisies.
A few minutes away from the city of Heraklion, close to Agios Panteleimonas Monastery by Fodele, there is the canyon of Santorinios. The canyon is short but has not been exploited yet due to its quite difficult access, because of the dense vegetation and many ponds.
