Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Picton (54% of total searches to Marlborough Sounds). The next most popular destinations are Blenheim (41%) and Portage (3%). Searches for hotels in Endeavour Inlet (2%) are also popular.
KAYAK users have found double rooms in Marlborough Sounds for as cheap as $14 (Picton) in the last 3 days. The average price is $149.