Nilea gorge (other names: “Arapis” or Boulovinenas gorge) is located in northeastern Evia, between the villages Kerameia and Agia Anna. Nileas is the river crossing the gorge that was given the name “Arapis” (“black” in Greek) due to the black color of most of its river beds. The gorge is 10 kilometers long and is quite rough, as you cannot cross it just by hiking, but also by swimming at some points. Homer has referred to the gorge and river Nileas. The cave of the gorge was used as a shelter of the locals during the period of the Turkish occupation. It is even said that a woman named Boulovinena came out of the cave and when the Turks found her she decided to kill herself, in order to avoid getting captured by them, falling in the gorge. This is why many call it Boulovinenas gorge. It is one of the most beautiful gorges of the island, with great history, wild beauty, rich fauna and flora. You should get organized and swim across it.