Parc del Foix, Natural park and protected area in Castellet i la Gornal, Spain

Parc del Foix is a protected natural area of about 3,157 hectares in the foothills of the Garraf Massif, spanning the Alt Penedès, Baix Penedès and Garraf regions. Its centrepiece is the Foix reservoir, inaugurated in 1928 in Castellet i la Gornal, where the Foix river is dammed. The landscape mixes white-pine woods, holm-oak patches, riverside galleries along the Marmellar and Llitrà streams, and terraced vineyards.

The Foix reservoir was inaugurated in 1928 in Castellet i la Gornal. The Special Plan for the Pantà del Foix, approved on 28 July 1993, protects the natural and cultural values of the 3,157-hectare park. In Iberian-Roman times the via from Tarraco to Barcino crossed the area, and in the Middle Ages it was a frontier between Christians and Muslims, guarded by the castles of Penyafort and Castellet.

The Foix valley was a crossroads: the Roman road from Tarraco to Barcino crossed it, and in the Middle Ages it marked the frontier between Christian and Muslim lands. The castles of Penyafort and Castellet date from that period. Today many farmhouses (masies) recall the Mediterranean trio of oil, wheat and vines, and the canyades, old transhumance paths, show how important livestock herding once was.

Marked trails of different difficulty levels guide visitors through the park's natural landscape. Parking is available at the main entrances for convenient access.

The lake serves as a central gathering point where visitors can observe migratory birds while participating in regulated fishing activities.