The Butterflies or Orino Gorge is formed in the village of Orino. The gorge is initially technical, that is to say, it requires a special equipment because the waterfalls block the way. Orino forms impressive waterfalls, with lakes; especially the latter part is a veritable miracle of nature. The last three waterfalls at the exit of the Peristerionas area are among the most beautiful in all of Crete.

The amount of water in the river is also impressive, and it is hard to believe that it is located in the easternmost dry-thermal end of Crete, while there is a flow of water even in the summer months.

The river continues its flow to create its main hiking section at a lower point up to Koutsouras after a 3-4 hour walk. The vegetation consists mostly of pine trees.

The Gorge of Red Butterflies, as its hiking part is called, is very easily accessible, well signposted, and has a very visible path starting from the small forest of Koutsouras. It is a uniquely beautiful place during the winter and spring months because of the greenery, waters, lakes, and waterfalls it creates.