There is a bus from Grenoble to Autrans from the bus station (close to the railway station, on your left when you get off the railway station) at 10.05. Perhaps you will have to change at Lans-en-Vercors, (but the driver will tell you). You will be at Autrans around 11.05. There, a shuttle will get you to the Hotel "l’Escandille".
The stay at "L’Escandille" is planned to take place from Wednesday afternoon to Friday afternoon, it is the reason why lunch on arrival is not included in the stay, but there is of course an opportunity to take one (at the price of 17 euros, which will be charged to you). I guess the following people will be candidates for lunch (because of their arrival on the morning) : Carl, Marie-Renée, Myriam, Samuel, Christophe Fouqueré, Claire, Laurent, Emmanuel, Aude, Marie-Hélène, Sylvain. Tell me whether it is not the case or if you wish to take one and you are not included in this list.
On Thursday, a small walk is planned (two hours), if you are interested don’t forget to bring with you appropriate shoes for walking (not specifically "mountain" shoes, but reasonable ones). NEW : "L’Escandille" is just on the edge of the small village, at 1,2 kms from the Center. If coming by car, you have to go through the village and then to continue on your right : l’Escandille will be on your left. All facilities are provided, even a free WiFi zone.