The Trail Glazig begins in Plourhan, Brittany, leading runners along coastal paths, sandy beaches, fields, and small woods. Winter conditions can bring cold, wind, or snow. This trail-running event offers races for children and adults, with distances ranging from 5 km to 54 km, including the two-day 73 km Défi Kinetik.
The 5 km mini-trail is primarily for teenagers but accessible to others born early enough to participate. Its loop near Plourhan involves modest climbing of approximately 47 meters. The 54 km race presents a greater challenge, with 1,290 meters of climbing. Typically, the event attracts about 5,000 runners and over 450 volunteers. Established in 2002, Glazig also marks the start of the Challenge Ouest Trail Tour. The atmosphere resembles a village race with Breton music, rather than a large-scale city event.