Kocaali is a town and district of Sakarya Province in the Black Sea Region of Turkey. The mayor is Ahmet Acar (AKP).Coppermine, a district of Sakarya Province. Kocaali should not be confused with KOCAELİ (the province).The main sources of income, hazelnut, livestock and tourism.There are 14 km long and 500 meters wide, sandy beach, the sand quality feature class is registered as a world-class 2. Starting south of the Black Sea in the north of the town poured mining Creek.