 Saw-milling, boat-building and flaxstripping are carried on, together with trade in cereals, cloth, potatoes, etc.The port carries on fishing and a coasting and small foreign trade.Tro Breizh (Breton for "Tour of Brittany") is a Catholic pilgrimage that links the towns of the seven founding saints of Brittany, including Tréguier, Saint Tudwal's town.