Birkastan is a village pretending to be a grid. Tucked between Sankt Eriksplan and the water, it's a pocket of early-1900s apartment blocks built tight and human-scaled, with one café street running through it that the neighbourhood likes to call little Paris — and, for once, the name half-earns itself.
Start at Sankt Eriksplan and head straight for Rörstrandsgatan. It's a short street, gently downhill, lined with cafés and small restaurants that put their tables out the instant the sun allows — and at the far end, framed by the street itself, sits Karlbergs slott. Walk it slowly, then turn off into the grid behind: stone houses, quiet corners, the kind of streets people actually live on rather than visit.
Then west to the palace. It's the military academy now, so the doors stay shut, but the avenue and the grounds are open, and the Karlbergskanalen runs along the southern edge with a path beside it. Follow the water to Karlberg station and ride back, or loop home the way you came.

