The operation took place in the municipality of Vila do Bispo, in Faro district, with special focus on the Southwest Alentejo and Costa Vicentina Nature Park.
This location is usually frequented by motor caravanners throughout the year, a situation that has led to complaints to the police and environmental authorities.
"Illegal or irregular camping and caravanning in protected areas can lead to an excessive and disorderly occupation of public spaces, coastal areas and classified areas by motor caravans and similar, with negative consequences on the landscape, environment, spatial planning and public health," reads the note.
GNR said it will continue to raise awareness among caravanners and campers to "adopt more responsible and environmentally friendly behaviours", especially in protected areas.
The operation was coordinated by the GNR Territorial Detachment of Portimão, with the support of the Faro Intervention Detachment, the Maritime Police and the Vila do Bispo fire brigade.