Location: somewhere near August-Liebig-Weg 9, 65191, Wiesbaden, Germany.
Map: https://goo.gl/maps/
The address is a location point. No knocking on any doors
PUBLIC TRANSPORT:
Grab a beer/wine/whiskey, take S-Bahn from Frankfurt S1, S8 or S9 or a RB to Wiesbaden. Then catch two busses. #1 and then #21.and get off at Kappenbergweg.
Continue to walk up the road and August-Liebig-Weg will be on your right. Easy! Right?
You could also get the SBahn to Niedernhausen...but you can sort that route out on your own.
It's a little more complicated (www.rmv.de), but the end location is still Kappenbergweg in WI - Bierstadt.
Directions - by car:
Be sober, open car door, drive to the place your sat nav tells you to go to. Park car in the car park area.
You are all grown ups (legally), I am sure you will figure it out.