Kocaeli is a province located at the junction of roads connecting Asia and Europe, in the east of Marmara Sea and Marmara Region. It is surrounded by the Black Sea in the north, Sakarya in the east and southeast, Bursa in the south and Yalova and Istanbul in the west. Kocaeli province is one of the important cities with its coasts to the Black Sea and Marmara Sea, its proximity to İstanbul metropolis, its historical monuments, museums, the mosques that are the works of Great Architect Sinan, its natural beauties, cultural centers and its development in the industrial sector.
You can reach Kocaeli by road, rail, airway, and sea.
Kartepe Ski Center
Kartepe district, which captivates all visitors and local people every season with different colors, is covered with white in winter. Due to its proximity to the city of İstanbul, it is becoming more and more popular.
Eskihisar Castle, which is within the boundaries of Kocaeli-Gebze, is among the oldest and most historic ruins of this region. It is a historical castle where Fatih Sultan Mehmet had placed his soldiers in and which was preserved from the Byzantine period until today.