The healing spring “Synyavsky Key” is first mentioned in historical documents in 1783. The village of Synyak appeared relatively recently. The date of its foundation was 1837. It was founded in a picturesque corner of the Carpathians near the sulfur springs, in the time of Count Philipp Franz von Schönborn-Buchheim. Thanks to the healing springs in which the water has a bluish tinge, the village is called the settlement of Synyak (Hungarian – Kékesfüred (Kékesfüred), German – Blaubad (Blaubad)). The first inhabitants of the village of Synyak were immigrants from the Czech Republic, namely from the Lower and Upper Chaslau (Czech Chaslava). In 1843, the population of the village reached 22 families who were engaged exclusively in deforestation and rafting (both men and women), loved to walk in wooden shoes and during this hard work with equal skill wielded an ax and saw. Most of the first settlers were ethnic Germans. and today many descendants of those Germans live in the village of Synyak. Synyak is the fourth largest village in Transcarpathia in terms of the number of representatives of the German national minority.