Nas was an ancient city where, according to legend, the Naiads lived. In ancient times it was one of the most famous Sanctuaries dedicated to Tauropolos Artemis. From the ancient port only the dock and the floor of the sanctuary remains till today. It is located west of Armenistis village.
Nas is well known as a place of alternative tourism, with many tents being set up in the green, peaceful and cool landscape.