Visited 18.09.23
Dolmen de Kermarquer is located c. 100m NW of Kermarquer, a small village in Morbihan. The circular mound, which measures c. 25m in diameter and 1.5m high, contains a dolmen with an unusual double chamber. A passage running ESE for c. 3m has two large capstones. It leads to a main chamber, open to the sky, measuring c. 2.5m square. A lateral chamber, separated by two portal stones, is located S of the main chamber. This subsidiary chamber, measuring c. 1.3m square, retains one capstone.
Take the turn for Kerdeneven off the D186 in Kermarquer. Bear right at a fork after 110m. Continue on this narrow lane for c. 70m to reach a wooden sign for a path to Dolmen de Kermarquer on the right. It is possible to park on the grass verge close to the path. Follow the path NE through the woods for 100m to reach Dolmen de Kermarquer in a clearing.