Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Lagos (84% of total searches to Southwest Alentejo and Vicentine Coast Natural Park). The next most popular destination is Sagres (16%).
KAYAK users have found double rooms in Southwest Alentejo and Vicentine Coast Natural Park for as cheap as $51 (Sagres) in the last 3 days. The average price is $223.