From the North
If you come from the North-West (Valance, Die), you take the D93 (later the D993) in the direction of Gap, Briançon. In Aspres-sur-Buëch go to your left and right in the direction of Veynes and Gap (D994A). At the next crossing go to your right in the directions of Serres and Sisteron (D994).
In Pont-de-Chabestan go to your left (D49) over the bridge of the Buëch in direction of Chabestan. At the first possibility go to your left (D448) and again to your left at the next road (D48). After two kilometres you arrive at Domaine de Sivas. Domaine de Sivas is at your left at a blue sign. La Ferme is the first building you come across, continue to your right onto Le Poème or La Lavandole.
For more detailed directions have a look at Google Directions.