The 4-star Mercure Hotel Kamen Unna is located between the Ruhr cities of Dortmund and Hamm, near the Kamener Kreuz crossroads and Dortmund Airport. Our hotel is perfect for stopovers before and after flights, and as a base for your private or business ve ntures in the Ruhr Valley and Eastern Westphalia. The 104 rooms at the Mercure Hotel Kamen Unna are air-conditioned and offer free WIFI.