Gladstone Park local dog walk, Greater London Good sized park, and home of the brilliant named Woofstock dog show. A popular dog walking park.
Dog-friendly motel and country park - close to Heathrow Airport, London A Travelodge motel with a small country park literally on the doorstep, and really close for Heathrow if you need to stay over to pick someone up and have the dog with you.
A206 Abbey Wood dog walk, Greater London Lovely woodland for dogs, and also the remains of an Abbey. There's about 200 hectares of wood and hidden in there somewhere are old chalk pits and evidence of a Bronze Age settlement.
Scadbury Park on-lead local dog walk, Kent Biggest park in the area, with a mix of scrubland, an ancient moated manor house and trees. It's dogs on leads only (see the comment below) so don't forget the long lead if you're planning to visit.
Fryent Country Park, Greater London The Capital Ring footpath goes through this 100 hectare country park. It's not over-manicured and is popular with dog owners.
Doggie day out in lavender fields near London, Surrey Lovely dog-friendly day out from London in the Surrey countryside. On a hot summer's day it feels like Provence!
Coldfall Wood local dog walk, Greater London A tiny slice of ancient woodland, a bit squeezed between Muswell Hill playing fields and St Pancras cemetery - but well worth a visit.
Richmond Royal Park local dog walks, Surrey Largest of the Royal Parks with over a thousand acres of land.
Pitshanger Park, Ealing, Greater London Popular dog walking park, with lots of open space for dogs to run free. There's a river path along the Brent.
A404 dog walk near Rickmansworth, Hertfordshire A calm woodland dog-walking space close to Rickmansworth and the A404. A fine place for a gentle dog walk and picnic, and surprisingly quiet.
Havering Country Park dog walks, Essex Bridle paths and long forest walks are possible in the hundred acres of woodland here. Small routes through the park and forest have disabled/pushchair access.