Turkey travel guide
Explore Kocaeli, a convenient escape near Istanbul offering Marmara and Black Sea coastlines, Kartepe’s mountain scenery, Ballıkayalar Nature Park, museums, beaches, forests and year-round outdoor activities.
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Museums & History
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Submit a Radar report →A historic mosque with sixteenth-century origins, commissioned by Defterdar Abdüsselam Bey. Also known as İmaret Mosque, it has undergone repairs and alterations over time. Respect prayer times and worship arrangements.
📍 Kemalpaşa Mahallesi, Abdüsselam İmaret Camii, İzmit/Kocaeli
Museums & History
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Submit a Radar report →A memorial tomb on Babadağ in Kandıra commemorating Akçakoca Bey, a commander of the early Ottoman period. It is a cultural landmark associated with the Ottoman expansion into the Kocaeli region.
📍 Babadağ mevkii, Akçakoca Bey Anıt Mezarı, Kandıra/Kocaeli
Museums & History
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Submit a Radar report →Housed in the historic Redif building, this museum is known for collections relating to the Turkish War of Independence and Ottoman daily life. The ethnography collection was transferred here in 2020. Confirm current opening status and hours with the museum directorate.
📍 Kemalpaşa Mahallesi, İnönü Caddesi 80-1, İzmit/Kocaeli
Museums & History
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Submit a Radar report →Also known as Urgancı Ahmet Çelebi Mosque, this place of worship forms part of Izmit’s urban heritage. Its name connects it with the Baç area and the plane tree in its grounds. The building has undergone additions and repairs. Respect worship arrangements.
📍 Cedit Mahallesi, İnönü Caddesi başlangıcı, Baç Çınarlı Camii, İzmit/Kocaeli
Museums & History
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Submit a Radar report →A protected archaeological area documented for settlement traces and pottery from different periods. The remains extend across a broad area rather than a managed visitor site. Check access, property boundaries and conservation restrictions before visiting.
📍 Çınarlı–Çenedağ mevkii, arkeolojik sit alanı, Derince/Kocaeli
Museums & History
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Submit a Radar report →A sixteenth-century Ottoman roadside complex comprising a mosque, tomb, madrasa, library and other service buildings. It was designed to serve travellers along a historic route. Respect worship arrangements when visiting.
📍 Mustafapaşa Mahallesi, Çoban Mustafa Paşa Külliyesi, Gebze/Kocaeli
Museums & History
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Submit a Radar report →Surviving tower and wall remains of the historic castle in central Darıca. Only part of the original fortification remains. It should not be expected to resemble a complete castle; view the remains without climbing on them.
📍 Darıca merkez, tarihî kale kalıntıları, Darıca/Kocaeli
Museums & History
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Submit a Radar report →A nineteenth-century Ottoman mansion in Demirciler, noted for its painted interior decoration. It forms part of the area’s residential architectural heritage. Check its current use and interior access before visiting.
📍 Demirciler Mahallesi, tarihî Demirciler Konağı, Dilovası/Kocaeli
Museums & History
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Submit a Radar report →A historic railway ensemble including the main station building, warehouse and railway housing. It represents the area’s railway heritage. Observe operational boundaries and do not enter tracks or restricted railway areas.
📍 Büyük Derbent, Hikmetiye çevresi, tarihî istasyon binaları, Kartepe/Kocaeli
Plan your visit
Kocaeli lies east of Istanbul between the Marmara and Black Sea coasts, offering industrial heritage, forest areas, beaches and winter activities at Kartepe.
Summer suits the coast, spring and autumn suit nature, and winter attracts visitors to Kartepe.
Rail, buses and ferries serve urban districts. A car is useful for Kartepe and the Black Sea coast.
Travel conditions and opening arrangements can change. Check current information before your visit.
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