From Utrecht

Merge on to the A2 towards 'Amsterdam'.
Take exit 'Zaanstad Knooppunt Amstel' and merge on to the A10/E35.
Take exit 'Oostzanerwerf-s118' towards 'Tuindorp Oostzaan'.
Go right on to the 'Verlengde Stellingweg/s118'.
Go right after 100-200 m. to Westeinde.