Capella de la Mare de Déu de les Arenes

Capella de la Mare de Déu de les Arenes is a small Romanesque chapel in Castellar del Vallès, tucked at the foot of the Sant Llorenç del Munt massif. It is easy to miss on a map, yet it rewards a visit with plain stone walls, a single nave, and centuries of continuous Marian devotion packed into one quiet corner of the landscape.

How old is this place?

The place-name Les Arenes already appears in documents from the 10th century, and the chapel itself is recorded from at least 1121 — a long pedigree for such a modest rural building. For most of its history the site fell under the parish of Sant Feliu del Racó, even though it functioned as its own pilgrimage focus and a landmark for the farms scattered around it.

What will you actually see?

The building follows a typical Romanesque plan for the region: a single nave closed by a semicircular apse, with no sculpted decoration on the exterior — the plainness is deliberate, not accidental. The south façade is dominated by a row of heavy buttresses, and tucked among them is the original entrance, a round-arched doorway that is now sealed and no longer in use. Attached to the north wall stands the hermits' house, a much later addition built once the main chapel structure was already in place. That contrast between the austere Romanesque core and the later utilitarian annex tells you a lot about how the site actually lived and functioned over the centuries.

Why do people still come here?

The chapel houses an image of the Virgin known locally as the Mare de Déu del Poalet — the "Virgin of the little bucket." The Romanesque carving once carried a small silver bucket at its arm, tied to the belief that the image interceded for the community during droughts, bringing rain to parched fields. That devotion is still alive today: mass is celebrated here once a month, and once a year — on Easter Monday and on 8 September — the chapel becomes the destination for an aplec, the traditional Catalan gathering that mixes religious ceremony with an open-air communal picnic.

When should you visit?

The best time to come is on one of the two annual aplecs — Easter Monday (a moving date tied to the liturgical calendar) and 8 September, the feast of the Virgin's Nativity. On those days the site comes alive, with families from across the area joining the local community for the celebration. Outside those dates, the chapel remains a peaceful stop along walking routes into Sant Llorenç del Munt — a good pause for anyone looking for quiet history rather than crowds.

How do you get there?

The chapel sits within the municipality of Castellar del Vallès, on the approach toward the Sant Llorenç del Munt i Serra de l'Obac range. Access is typically via local roads and walking paths leading out of town toward the mountains — it works well as part of a longer hike, pairing the chapel visit with views over the massif.

Frequently asked questions

Is the chapel open to visitors every day? No, it does not keep regular visiting hours. Access to the interior is mainly tied to the monthly mass and the two annual aplecs.

What exactly is an aplec? It is a traditional Catalan religious-popular gathering combining mass, procession, and an open-air picnic — at Les Arenes it takes place on Easter Monday and on 8 September.

What is the Mare de Déu del Poalet figure? It is the local name for the Marian image venerated in the chapel, linked to the small bucket the carving once held at its arm, a symbol of its intercession during times of drought.

Is it worth combining with a hike in Sant Llorenç del Munt? Yes, the chapel sits on the edge of the massif and works as a natural landmark along walking routes heading into the mountains from Castellar del Vallès.