Surprise, Surprise, it's starting close to Wiesbaden Hauptbahnhof.
On On
Maps: https://goo.gl/maps/ZrKmTfzJPmtWDfP49
We will meet on the green of Herbertanlage next to Friedrich-Ebert-Allee.
In bad weather conditions we might use the pavilion on the other side of the green.
By car:
Use your navi. Parking is normally possible on Friedrich Ebert Allee.
By train:
Use www.rmv.de to get to Wiesbaden Hauptbahnhof. It's a 500m walk to on-start.