Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Freiburg im Breisgau (53% of total searches to Black Forest). The next most popular destinations are Baden-Baden (26%) and Karlsruhe (18%). Searches for hotels in Rottweil (4%) are also popular.
KAYAK users have found double rooms in Black Forest for as cheap as $47 (Rottweil) in the last 3 days. The average price is $193.