Hannover

Germany's largest urban forest at 640 hectares (2.5× Central Park). Three designated Hundefreilaufflächen and 80 km of marked trails.

A 78-hectare artificial lake with a 6 km leashed walking loop and a designated Hundebadestelle at the south end where dogs may swim off-leash.

A 1913 city hall on a small lake, with panoramic views from its curved dome. The Maschpark and outdoor terrace are leash-accessible.

The free section of the Herrenhäuser Gärten (47 hectares), featuring the famous 2 km Herrenhäuser Allee lime-tree avenue. Leashed dogs welcome.

The reconstructed historic core around the Marktkirche, with half-timbered houses, the cobbled Kramerstraße and the Ballhofplatz — all pedestrianised and leash-accessible.

A 5 km leashed walk along both banks of the Leine, crossing the Leineinsel park. Shaded, flat, multiple dog-friendly cafés on the way.