Çayyaka is a village in Cide District, in Kastamonu Province, Türkiye. Çayyaka lies at 21 m above sea level, in the Küre mountains. It has 227 inhabitants. The nearest city is Kastamonu, 80 km to the southeast. Among the landmarks around are Carambis (12.8 km) and Kerempe Lighthouse (12.2 km).