Callac is located 28 kilometers south-west of Guingamp and 20 kilometers northeast of Carhaix-Plouguer, Finistère. It is watered by the small river of Hyères, a tributary of Alder. The site is occupied Callac since the Gallo-Roman period as evidenced by its name (the old Celtic "Kal" where we find the rock) and the presence of a Gallo-Roman bridge on the Hyères.
Callac is becoming a Green Station. This is a tourist destination for leisure and holidays, nationally recognized as an organized resort, offering services and pleasures expected in the universe Nature. Still a respected and preserved, a tourist office organizing the reception and information, facilities and activities to enjoy and share: nature tours, leisure facilities, a gateway to the Land (products to taste ) and finally, services, shops, playgrounds.