Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Hiroshima (86% of total searches to Chugoku). The next most popular destinations are Okayama (9%) and Hatsukaichi (3%). Searches for hotels in Shimonoseki (2%) are also popular.
KAYAK users have found double rooms in Chugoku for as cheap as $50 (Marugame) in the last 3 days. The average price is $187.