Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Sanya (83% of total searches to Hainan). The next most popular destination is Qionghai (17%).
KAYAK users have found double rooms in Hainan for as cheap as 30 ﷼ (Sanya) in the last 3 days. The average price is 476 ﷼.