Environmental non-governmental organisation since 1981
grupoecologicocascais@gmail.com

Natural heritage

Biodiversity in Cascais

Conserving the habitats, fauna and flora of the municipality depends on local knowledge, ecological restoration and ongoing participation.

  • Updated 4 September 2026
  • Grupo Ecológico de Cascais
Guincho beach and the coast of the Sintra-Cascais Natural Park
Guincho beach, in the Sintra-Cascais Natural Park. Photo by GualdimG, CC BY-SA 4.0 (adapted).
01

A land between hills, streams and ocean

The GEC's work covers the land, freshwater, coastal and marine ecosystems of the municipality of Cascais and the Sintra-Cascais Natural Park.

This diversity of landscapes calls for fieldwork, monitoring of how the land is changing, and cooperation between citizens, associations and public bodies.

02

Conserve and restore

The GEC seeks to contribute to the conservation and restoration of marine and land fauna and flora. Cleaning up natural areas, field surveys on the Eco-Trails and the debate on ecological restoration are complementary parts of this work.

03

Participation is conservation too

Biodiversity is not protected by one-off actions alone. Public consultations, formal opinions, environmental education and civic movements help bring nature into decisions about the future of the municipality.