Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Lagos (50% of total searches to Southwest Alentejo and Vicentine Coast Natural Park). The next most popular destination is Vila Nova de Milfontes (50%).
KAYAK users have found double rooms in Southwest Alentejo and Vicentine Coast Natural Park for as cheap as 60 ﷼ (Lagos) in the last 3 days. The average price is 641 ﷼.