Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Marugame (41% of total searches to Kagawa Prefecture). The next most popular destinations are Takamatsu (34%) and Naoshima (17%). Searches for hotels in Shodoshima (7%) are also popular.
KAYAK users have found double rooms in Kagawa Prefecture for as cheap as $42 (Kotohira) in the last 3 days. The average price is $288.