Çınarcık has a permanent population of 9,000 but its location near İstanbul has made it a popular location for summer homes. On hot weekends during the summer, the population can swell to 300,000 and construction of new summer homes in the town is fast paced.
Çınarcık is located on a small strip of flat land on the coast with mountains rising sharply in back of it. This environment is very common among cities on the northern coast of Turkey. Cınarcık provides a number of vacation activities including camping, hiking, and beaches. Most of the coastline of Çınarck is rocky but the western end has sand beaches with several restaurants. The beaches are not of high quality by Turkish standards as there is a considerable amount of seaweed and jellyfish in the surf, though the jellyfish do not sting. The nightlife can be lively during the summer, due to the large number of İstanbulites staying there. The largest club is Club Kale.