Length: 12.6 km (7.8 miles), or 13.9 km (8.6 miles) if completing the full walk to Northfields. Toughness: 2/10
Take a Piccadilly line tube (towards Heathrow) to arrive at Boston Manor (TfL Zone 4) by 11:00. It's about a 30-minute journey from central London. Return from either Boston Manor or Northfields, one stop nearer London on the same line.
This newish walk attracted quite a large crowd on its début in 2023. The route has since been simplified in a few places but still takes in lots of interesting features on its meandering course through west London: parks, canals, locks, unusual bridges, railway viaducts, a zoo, etc. There's even a maze if you want to test your navigational skills without the aid of a GPS device.
There are no convenient pubs in the middle part of the walk so the suggested lunch place is the Brent Lodge Park Café after 9 km. However, a short detour away from the canal would let you visit The Fox pub in Hanwell on either the outward or return legs. Towards the end of the walk I remember seeing No.6 Coffee in the parade of shops near Boston Manor station but there's no guarantee this coffee shop will be open; if you do the short extension through Blondin Park you should be able to find some more refreshment places along Northfield Avenue.
You'll need to bring the directions from the L=swc.418.a page.