From Milano:

From the Cormano exit take the SP44bis (the “Comasina”) for 6km – keeping the tramlines on your left. Alternatively take the Milan-Meda dual carriageway leaving at the Varedo exit and follow the road signs which take you onto the SP 44bis.

From Saronno:

At the Limbiate-Monza fork follow the sign for Limbiate and then the tramlines in the Milan direction.

From Como:

Follow the SP 44bis
(the “Comasina”) in the Milan direction or take the Milan-Meda dual carriageway leaving at the Varedo exit and follow the road signs which take you onto the SP 44bis.

From Monza:

Follow the signs for Varedo, cross the town centre and turn left onto the SP 44 bis
(the “Comasina”)