Every year the GEC takes part in Clean Up the Med, one of the largest international environmental volunteering campaigns dedicated to cleaning beaches and coastal areas in the Mediterranean region.
The association chooses an area of the municipality of Cascais for the action and involves its members and local residents in collecting litter. In 2025, the work took place in the Areia, Birre and Aldeia de Juso woodlands. The GEC also organised a Clean Up the World action along the Ribeira das Vinhas stream.
The project combines practical action with environmental education. Each action helps care for the chosen area and builds a local community that is more aware of the impact of litter on ecosystems.
