https://www.ucra.co.uk/the-london-outer-orbital-path-the-london-loop/
The London Outer Orbital Path (The London Loop) - Upminster & Cranham Residents' Association
May 18, 2021 - As its name suggests, the London Loop is a 150 mile (242km) long signed walking route around the edge of outer London and celebrates its 20th anniversary this...
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