Parking of Rewe market in Wiesbaden - Erbenheim.
It is the smaller one next arouind the ramp of the motorway.
Map: https://goo.gl/maps/VZAPTKfH9dM4V37o7
Public Transport: Take a train from Frankfurt station via Wiesbaden train station to Wiesbaden Erbenheim and a little walk to the start.
Use www.rmv.de to find your best personal connections.
Car: navi! navi! navi!