



⏳"more vieux que les pyramides d'Égypte" (Saint-Nazaire Tourisme)
📅Open July-Aug only, closed Mon/Sat
Step inside a 6,000-year-old mystery older than the pyramids. This rare Neolithic tumulus hides two ancient burial chambers carved with cryptic symbols: croziers, axes, and what might be a sperm whale. Guided tours in small groups run July through August only.
6,000 years old
Megalithic monument
Guided tours only
Small group visits
Book Tickets




⏳"more vieux que les pyramides d'Égypte" (Saint-Nazaire Tourisme)
📅Open July-Aug only, closed Mon/Sat
Step inside a 6,000-year-old mystery older than the pyramids. This rare Neolithic tumulus hides two ancient burial chambers carved with cryptic symbols: croziers, axes, and what might be a sperm whale. Guided tours in small groups run July through August only.
6,000 years old
Megalithic monument
Guided tours only
Small group visits