You arrive at Sarzeau by the D780 coming from Vannes.
At the roundabout Kergroes (Super U) turn left towards Roaliguen.
Arrive at a place called Kergorange (about 600m).
Continue approximately 200 m to the elevated pedestrian crossing (30km / h limit)
The impasse Balzac is on your left.
Mor Ha Marc'h is located at the end of the impasse on the left.