Start at the Col de la Femmina Morta pass.
Take a small paved road until you reach a crossroads (1). Turn left on a vehicle track, go downhill (to the right a road rises to the Monte Soro and its peaks).
Arrive after less than an hour at Lake Maulazzo (2), pleasant place for a break.
Continue down, the track is worse here and passes a fountain (3) (approximate position).
Continue north-east and come to a crossroads of the tracks (4). Take the right branch (left goes down to Alcara Li Fusi if I remember correctly). Continue for a long stretch in an easterly direction to arrive near Lake Bivière (5). You can head down to lake shore and take a walk around it (in a clockwise direction on the diagram).
Return by the same route, this time uphill.