Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Pula (46% of total searches to Istarska). The next most popular destinations are Rovinj (31%) and Rabac (15%). Searches for hotels in Poreč (8%) are also popular.
KAYAK users have found double rooms in Istarska for as cheap as $38 (Pula) in the last 3 days. The average price is $300.