Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Faro (65% of total searches to Parque Natural da Ria Formosa). The next most popular destinations are Tavira (17%) and Vilamoura (9%). Searches for hotels in Montenegro (9%) are also popular.
KAYAK users have found double rooms in Parque Natural da Ria Formosa for as cheap as $45 (Faro) in the last 3 days. The average price is $331.