You can take the motorway or Nacional II road to the north. When you arrive at Maçanet de la Selva (9th exit), you've to go to Santa Coloma de Farners,you'll cross Anglès and Amer when you arrive at Sant Esteve d'En Bas, turn to Vic, in the Km 51 turn right and you'll find the signs to "Allotjaments Colomer-Cullell".
From la Jonquera
You can take the motorway to Figueres, When you arrive at Besalú, turn left to Olot, cross Olot to Sant Esteve d'en Bas. Once here you'll find the signs to "Allotjaments Colomer-Cullell".