Coimbra

Founded 1290, UNESCO-listed since 2013. The outdoor Paço das Escolas courtyard at the top of the hill welcomes leashed dogs. Interior tours (Joanina Library, Royal Palace) remain ticketed and off-limits to pets.

Fortress-like Romanesque cathedral consecrated 1184. Dogs not allowed inside (except assistance dogs), but the cobbled square in front is one of the city's prettiest outdoor spots.

78 ha riparian forest along the Mondego west of the centre — poplars, ash, willows and a 5 km loop trail. The most popular dog walking spot in Coimbra.

Curved pedestrian bridge (2007) linking the two banks of the Parque Verde do Mondego. Unbeatable view of the old town skyline at sunset. Open 24/7 to dogs.

Founded 1772, one of Europe's oldest university botanical gardens. Terraced grounds, rare trees, bamboo grove. Leashed dogs welcome in the outdoor areas (not in the greenhouses).

14th-century historic gardens linked to the Pedro and Inês de Castro legend — the 'Fountain of Loves' and 'Fountain of Tears' are accessible to visitors and leashed dogs.