Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Kushimoto (50% of total searches to Wakayama Prefecture). The next most popular destinations are Kōya (17%) and Katsuura (17%). Searches for hotels in Shirahama (17%) are also popular.
KAYAK users have found double rooms in Wakayama Prefecture for as cheap as €41 (Shirahama) in the last 3 days. The average price is €206.