The monastery is built directly into the side of a canyon, with parts of the structure functioning as rock-cut architecture.
It is historically linked to the hermit Saint John the Hermit (Agios Ioannis Xenos), who resided in a nearby cave.
The stone bridge at the site was constructed to provide a route for monks to access the other side of the gorge and the sea.
The monastery was abandoned in 1646 after frequent pirate attacks made the coastal site untenable for the monks.
The church interior contains a natural cave system that extends deep into the cliffside.
Katholiko Monastery, also known as the Monastery of Agios Ioannis the Hermit, is the oldest monastery on Crete, with its origins dating back to the 11th century. The site is uniquely integrated into the limestone walls of the Avlaki Gorge, featuring a massive bridge and an abandoned church carved directly into the rock face. It served as a secluded retreat for monks who lived in the adjacent caves until they abandoned the location in the 17th century due to pirate raids. The architectural remains include an unfinished facade, living quarters, and a stone-arched bridge spanning the dry ravine below. Visitors reach the site by hiking through the rocky terrain of the Akrotiri Peninsula, passing the still-active Agia Triada Tzagaroli monastery along the route. The ruins are currently unrestored, providing a glimpse into the ascetic lifestyle of early medieval Byzantine monastics. The gorge surroundings contain several interconnected caves, including the cave of Agios Ioannis, where the saint is said to have lived.
From the ridge looking down at the stone bridge and the facade of the cave church.
Wear sturdy hiking boots, as the trail consists of loose, uneven limestone and steep rocky steps.
Carry significantly more water than you expect to drink, as the gorge traps heat and has no shade.
Avoid midday hiking during July and August to prevent heat exhaustion.
Do not attempt the hike in flip-flops or open sandals, as the jagged limestone path is prone to causing injuries.
Maintain a respectful silence as the site is considered sacred by locals; refrain from climbing on the loose structural ruins.
