This Geohash is located on the median strip of the Hamburger Allee in Hannover-Mitte.
Fippe and Dana
Fippe walked from the university to meet Dana near her school after she was finished there. They used a printed-out directions and maps to find the geohash location. It was not very far, but cold. To their surprise, they found Georg at near the coordinates. Georg could confirm that they were at the correct spot using his GPS device. (If Georg hadn't been their, Fippe would have probably used his phone, which was in his bag, as a confirmation.) Georg also took a picture of the spot.
After talking to each other we went on our separate ways again: Georg went north, Dana went to the main train station and from there home via tram, and Fippe went back to university because one of his lecturers thought 17:00 would be a nice time for a lecture.
I traveled from Kassel to Hannover by train and made a big detour by walking. But at 15:15 I arrived at the hash and took proof. Then I waited for Fippe and Dana. They arrived as planned at 15:30. Fippe showed me a printout of the site and declared his proof by pointing to the edges of the houses. We talked a little bit, then we went on on our ways.
Fippe's start and finish point at the university
the site of the hash: at the tree in front of the yellow car
the hash at the tree in the middle of the road
looking to Kohlrauschstraße
looking along Hamburger Allee to the northwest
looking opposite the street
looking along Hamburger Allee to the southeast