Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Franz Josef Glacier (46% of total searches to West Coast). The next most popular destinations are Greymouth (20%) and Hokitika (19%). Searches for hotels in Fox Glacier (15%) are also popular.
KAYAK users have found double rooms in West Coast for as cheap as $93 (Fox Glacier) in the last 3 days. The average price is $93.