London

The 350-acre royal park in central London allows dogs off-leash throughout most of its grounds, except in the Diana Memorial Fountain and flower gardens. It's a classic morning walk spot along the Serpentine lake.

A wild 320-hectare heath in north London beloved by dog owners, with woodlands, meadows and ponds. Dogs roam freely across most paths, and Parliament Hill offers one of the best skyline views in the city.

Pastel townhouses, independent cafés and the famous Saturday antiques market make Notting Hill a dog-walker's delight. Many cafés along Portobello Road keep water bowls outside and welcome leashed dogs on their terraces.

Dogs aren't allowed inside this 11th-century fortress, but the Tower Hill gardens and nearby Thames Path make a scenic exterior walk. Views of Tower Bridge are arguably better from the outside anyway.

A flat 5km towpath links Little Venice to Camden Lock through Regent's Park borders. Narrowboats, willow trees and plenty of dog-friendly pubs make it one of London's most charming walks.

London's oldest enclosed royal park climbs to the Royal Observatory and the Prime Meridian. Dogs are welcome on-leash near the deer enclosure and off-leash elsewhere, with panoramic views over Canary Wharf.