8th edition of the Rando-muco des Montagnes Noires organized by the cyclo club des chasseurs de Gourin. 5 cycling circuits of 27, 57, 80, 90 and 102 km, 4 hiking loops of 5, 10, 15 and 22 km and 3 mountain bike circuits. Departures from 8am. Price: € 5 per person (donated to the Pierre Le Bigaut association for the benefit of cystic fibrosis research). Registration and departure Place du General de Gaulle in Gourin. Free snack on arrival.