Gönen
Gönen lies in the valley of the Aisepos, a river flowing north toward the Sea of Marmara. The settlement was known for its hot springs from early Christian times and served as a market for the surrounding countryside. The Ottoman traveller Evliya Çelebi described a well-kept town with red-tiled buildings. Its warm waters drew people seeking relief, while the river valley connected it with the plains and coast to the north.