Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Istanbul (99% of total searches to Princes' Islands). The next most popular destinations are Büyükada (1%) and Kinaliada (0%). Searches for hotels in Heybeliada (0%) are also popular.
KAYAK users have found double rooms in Princes' Islands for as cheap as $6 (Istanbul) in the last 3 days. The average price is $139.