Bastien Joubert

"Find the Wishtree : Follow the pathway that leads around the park's 'barbecueing field' (Grillwiese) and you'll find the wishtree at the eastern end, just next to a lamppost."

"Look for the door covered in stickers (there's a sign beside it for 'Schatz EV Schulaufgabenzirkel') and take the scary-looking graffitied stairs (above right) up to the second floor."

"Look out for a grim metal security gate shielding an equally grim concrete stairway between the Kaiser's supermarket and a kebab store (below). Take the stairs to the first landing and turn right."

"Enter the back building in courtyard then 3rd floor"

"Anyone wishing to acquire a patented crafted anal brushes should head to the Ökomarkt in Kreuzberg's Chamissoplatz where, in summer months, Herr Schröder sets up stall."

"Just don't go there. The food is disgusting."