Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Harbin (85% of total searches to Heilongjiang). The next most popular destinations are Mudanjiang (6%) and Harbin (6%). Searches for hotels in Qiqihar (2%) are also popular.
KAYAK users have found double rooms in Heilongjiang for as cheap as $10 (Harbin) in the last 3 days. The average price is $58.