East Side Gallery
Start at the East Side Gallery, the longest surviving stretch of the Berlin Wall, now covered in murals painted by artists from around the world in the years after it fell — over a kilometre of it along the Spree, easy to walk as a group at whatever pace people want, with no ticket and no queue. It sits right in Friedrichshain, the neighbourhood built for the rest of the evening; cross the Oberbaumbrücke at its far end and you're in Kreuzberg instead, useful to know if the group wants to hop between the two.
From there, head for Boxhagener Platz and the streets around Simon-Dach-Straße, a dense grid of casual bars, cheap eats and beer gardens that fills up with exactly the mixed, loud, unpretentious crowd a group weekend wants. Nothing here requires booking, which means the group can drift between two or three bars without a plan.
East Side Gallery
Photo: Max Henike