Yeniköy Termal Suyu welcomes visitors in Başiskele, Kocaeli, around a thermal water source. The water emerges at around 57 °C here. On site, visitors can enjoy a steam room, the traditional heated marble platform (göbek taşı) and a kessa-glove scrub.
Insider tip — Yeniköy Thermal Water facility in Başiskele, Kocaeli — a major new geothermal project by Kocaeli Metropolitan Municipality. The 57°C mineralised water rises from 930 metres below ground and is set to make Kocaeli a significant health-tourism destination for the entire Marmara region. The facility includes thermal pools, hammams, saunas and wellness amenities.