From Schiphol/The Hague/Rotterdam

Take exit 'Knooppunt De Nieuwe Meer' to the A10/E22 west towards Centrum/Zaanstad/Leeuwarden/Ring Amsterdam (west).
Merge on to the A10/E22 and continue on the A10.
Take exit s118 towards 'Tuindorp Oostzaan'.
Turn left on to the 'Verlengde Stellingweg/s118'.
Continue on the 'Verlengde Stellingweg' for 100-200 m., then turn right to Westeinde.