Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Faro (63% of total searches to Parque Natural da Ria Formosa). The next most popular destinations are Tavira (16%) and Vilamoura (13%). Searches for hotels in Loulé (9%) are also popular.
KAYAK users have found double rooms in Parque Natural da Ria Formosa for as cheap as $33 (Tavira) in the last 3 days. The average price is $399.