For your arrival: indicate to your GPS "La Corne au Cerf, Moux en Morvan", it takes you on a road perpendicular to the one that runs along the lake (along a trailer camping La Cabane Verte), take this road and at 400 m take the fork on the right, the house (white) is 100m after.
If you are driving a car you can park it in the field in front, by motorcycle rather in the yard.