Parking at Prétairié (car park), at the end of the road that leaves the village of Abondance and passes through Plan de Charmy.
(S/E) Take the track that starts at the end of the car park (south) and makes two bends, first to the right and then to the left.
(1) At a fork in the track in the next bend, take a path on the left towards Lac de Tavaneuse. Climb very steeply through sparse vegetation. After crossing a stream, climb up into the forest.
(2) At an intersection, continue left on a path that is initially gentle but then climbs steeply in hairpin bends. Pass close to a waterfall, then the Chalets de Tavaneuse (abandoned). Reach Lac de Tavaneuse.
(3) Walk along the left side of the lake and follow a path eastwards. This path winds its way up to a pass separating Tavaneuse and Entre Deux Pertuis (elevation 1913 m; unnamed pass on IGN maps).
(4) Take a path on the left that runs along a narrow grassy ridge (caution). After a series of short ascents and descents, you will reach the summit of Tête du Cheval.
(5) The descent follows the same route as the ascent to Prétarié (S/E).
