Cam Louis menhir, Neolithic menhir in Plouescat, France

The Cam Louis menhir is an upright granite block standing on rocky coastal terrain near Plouescat that reaches approximately 7 meters (23 feet) in height. Its western face shows natural cavities and features several small carved bowls across its lower section.

This stone was erected during the Neolithic period when megalithic traditions were widespread across the region. It received official protection status as a classified historical monument in 1909.

Local legend says the menhir hides a treasure that can only be found on Christmas night or Palm Sunday night. The surrounding rocks, called "fire rocks", have hollows known as "Sabbath bowls", likely recalling fires and libations held there in Merovingian times.

The site can be reached via the GR34 long-distance hiking trail that runs along the Breton coast, making it easy to locate. Visitors should note that parts of the approach cross private land and the rocky setting has uneven ground to navigate.

The lower western face bears around thirty small carved bowls whose purpose remains unclear to this day. In the past, seafarers used this prominent granite landmark as a navigation reference point along the coast.