Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Kumamoto (72% of total searches to Kumamoto Prefecture). The next most popular destinations are Minamioguni (15%) and Aso (12%). Searches for hotels in Takamori (2%) are also popular.
KAYAK users have found double rooms in Kumamoto Prefecture for as cheap as $29 (Kikuchi) in the last 3 days. The average price is $122.