Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Baden-Baden (42% of total searches to Black Forest). The next most popular destinations are Freiburg im Breisgau (34%) and Karlsruhe (20%). Searches for hotels in Offenburg (4%) are also popular.
KAYAK users have found double rooms in Black Forest for as cheap as £12 (Gaggenau) in the last 3 days. The average price is £194.