 The most famous part of the gorge is the stretch known as the Gates (or, albeit incorrectly, as "Iron Gates"), where the sides of the gorge close in to a width of only four meters and soar up to a height of almost .The gorge became a national park in 1962, particularly as a refuge for the rare kri-kri (Cretan goat), which is largely restricted to the park and an island just off the shore of Agia Marina.There are several other endemic species in the gorge and surrounding area, as well as many other species of flowers and birds.