By car: The simplest route is via the A44 (to the west of Leiden), rather than via the A4, which passes Leiden to the east.

Take the exit Leiden/TransFerium (exit number 8) and follow the Leiden direction. Take the N206 (Plesmanlaan) and then follow the signs to the Bio-Science Park.

At the second set of traffic lights turn left, in the direction of the Bio-Science Park.