Belceğiz Bay (also called Belcekız Bay) is a small Mediterranean bay of Turkey. It is situated in Fethiye ilçe (district) of Muğla Province at 36.5°N 36°W. [1] The width of the bay is about and it offers a good beach. It is the end point of a touristic valley called Butterfly Valley (Turkish: Kelebekler Vadisi). Its highway distance to Dalaman Airport is about and its birds-flight distance to Ölüdeniz is about .