From the international Airport Juan Santamaría you follow the Pan-American Highway to the next exit "Alajuela - Atenas". At the stop sign of this exit turn left over the bridge and over the main highway going towards Atenas at the corner where the famous restaurant "La Fiesta del Maíz" is located. Turn left 1km and you are in Chatelle. There is a sign on the left side of the road.