Tatlıca is a village in Erfelek District, in Sinop Province, Türkiye. Tatlıca lies at 718 m above sea level, in the Küre mountains. It has 115 inhabitants. The nearest city is Sinop, 36 km to the northeast. Beaches nearby: Harzana (13 km). Among the landmarks around are Erfelek Dam (3.6 km). Among the natural features are Tatlıca Waterfalls (1.6 km).