From Adliswil station:
Take bus one 184 to Adliswil, Grüt. The school is the large grey building five hundred meters South-West.
Or, take bus 185 to Adliswil, Eichenweg. It is directly opposite to ZIS.
From Wollishofen station:
Take tram 7 to the end of the line in the direction of Wollishofen (tram). From there, take Bus 184 or Bus 185 to either Adliswil, Grüt or Adliswil, Eichenweg (see above).
From Kilchberg station:
Take Bus 162 to Adliswil, Ahornweg. Then walk down the road you are on for 150 meters in the direction Zurich City. The school is on your left.