York

England's most complete medieval circuit — 5 km of ramparts and four bars (gates), free, leashed, open dawn to dusk.

Medieval butchers' street — Britain's most-photographed street and an inspiration for Diagon Alley. Open 24/7, dog-friendly throughout.

A 4-hectare botanical garden in the heart of York, on the grounds of the ruined St Mary's Abbey. Free-roaming peacocks, free entry, leashed dogs.

A vast 100-hectare common encircling the racecourse — ancient pasture, off-leash year-round outside race days.

An 8-hectare 1921 memorial park gifted by the Rowntree family — formal lawns, duck pond, community café and a dog-friendly riverside section.

The outdoor precinct of the cathedral (Dean's Park, Minster Yard) is dog-friendly with leashed dogs — perfect for the city's signature photograph. Interior is for assistance dogs only.