The difficult terrain has resulted in relatively few settlements except along river banks. Accommodation is essentially restricted to the main cities, and is virtually non-existent in the interior. For further details, contact the embassy (see Contact Addresses). The few hotels that cater for visitors are expensive and generally booked up well in advance. The majority of hotels are in Kinshasa, with others in Boma, Bukavu, Kerning, Kisangani, Kolwezi, Lubumbashi, Matadi, Mbandaka, Mbanzangunu and Muanda.