Directions from Sintra
In Sintra, follow the directions to Colares and you will get in a long road N247. You will pass Colares Village but keep going in the N247 in direction to Almocageme and Cabo da Roca, always keep your way in the N247 until you arrive at Pé da Serra. There you will find The Quinta with a sign on the wall "Quinta da Arriaga" and a big green gate located in a sharp elbow shaped curve of the street.
Best tip to your ride: always fallow the N247 road