Established in 2003, the Terras sem Sombra Festival is a civil society initiative dedicated to showcasing the Alentejo region, renowned for its exceptional environmental, cultural, and scenic qualities, and recognised as one of Europe’s best-preserved territories. True to the values and mission that have guided it since its foundation, the Festival maintains its itinerant nature, with an emphasis on cultural decentralisation, audience development, inclusion, and sustainability. The programme includes classical music concerts, masterclasses, conferences, visits to cultural heritage sites, and biodiversity conservation initiatives — all free of charge and open to the public.

The Festival bridges historical masterpieces with contemporary artistic expression, supports emerging composers and performers, regularly commissions new works, promotes interdisciplinary arts, collaborates with the scientific and technological sectors, revives musicological heritage, deepens the understanding of regions and local communities, and embraces an ecumenical vision of the Sacred.
Recent seasons have seen an enhanced international presence, welcoming guest countries such as the United States, Brazil, Spain, Hungary, the Czech Republic, Belgium, Italy, and the Philippines. Additionally, initiatives like Terras sem Sombra Kids offer educational and entertaining experiences for young audiences and families.