Chapel of San Sarni is located on the picturesque mountain slopes of the Pyrenees. Towering over the valley of Sant Julia de lòria, it is the temple of the ancient village of Nahal, famous unique national flavor, old houses of stone and wood, unique way of life, not spoiled by civilization.

Chapel of San Cerny is a small Church in Romanesque style, built of local materials. The Church is fully consistent with traditional local architecture. It has a semicircular apse and a single rectangular nave. What the double bell tower and the porch with arcade (uncovered roof deck), they presumably were added to the temple later.

From the interior of the Church remained mounted under the barrel vaults of the apse of the ancient altar and some Romanesque decorative details of the XII-XIII centuries.

Particularly interesting in the interior of the chapel of San Serni ancient frescoes depicting angels stories on the theme of worship to the lamb, etc.