Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Chikusei (40% of total searches to Ibaraki Prefecture). The next most popular destinations are Mito (20%) and Tsuchiura (20%). Searches for hotels in Itako (20%) are also popular.
KAYAK users have found double rooms in Ibaraki Prefecture for as cheap as $47 (Mito) in the last 3 days. The average price is $183.