London Loop

London Outer Orbital Path
The London LOOP's logo, a flying kestrel, can be seen on the signs marking the route
Length	240 km (149 mi)
Location	London, England
Trailheads	Circular
Use	Hiking
Hiking details
Season	All year

The London Outer Orbital Path — more usually the "London LOOP" — is a 240-kilometre (150 mi) signed walk along public footpaths, and through parks, woods and fields around the edge of Outer London, England, described as "the M25 for walkers". The walk begins at Erith on the south bank of the River Thames and passes clockwise through Crayford, Petts Wood, Coulsdon, Banstead, Ewell, Kingston upon Thames, Uxbridge, Elstree, Cockfosters, Chingford, Chigwell, Grange Hill and Upminster Bridge before ending at Purfleet, almost directly across the Thames from its starting point. Between these settlements the route passes through green buffers and some of the highest points in Greater London.

The walk was first proposed at a meeting between ramblers and the Countryside Commission in 1990. It was given an official launch at the House of Lords in 1993. The first section was opened on May 3, 1996, with a ceremony on Farthing Downs, Coulsdon. Other sections followed at the rate of two or three per year as signs were installed and leaflets for individual sections published, the route becoming fully walkable in 2001. Following the election of Ken Livingstone as Mayor of London, the London Loop became one of his key routes, along with its sister route, the Capital Ring.