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Scratchwood nature reserve: "a remnant of the once great Middlesex Forest, and has the largest area of ancient woodland which survives in Barnet. Parts of it may go back to the woods which grew up after the end of the last ice age, the Younger Dryas, 11,500 years ago."

Example of field margins left for nature at Totteridge Fields #LondonLoop

Stage 16 of London Loop: Below is part of Totteridge Fields nature reserve, managed by the London Wildlife Trust.

Once were hedgerows. Footpaths run along these lines - hedges probably grubbed up in 1970s or 1980s to make larger more efficient fields. Now the fields are just left to pasture, the efficiency gains no longer matter but too late for the hedges and wildlife who benefitted

Probably a pre-enclosures double hedgerow with ditch (ie an ancient hedgerow), now grown out. (heading towards Elstree)

Stage 15. Best walk of all the stages through some lovely coppiced woods. Interesting also for boundary divisions. This is Grim's Dyke, probably pre-Roman division between territories/estates. Flooded as dammed more recently as this point

Stage 13 and 14 of #LondonLoop. Too cold to take more photos.

Plus, after the tidiness of the Surrey & W London sections, feels a bit more like the scruffier start of the Loop in Kent

And still always surprised by how few people are out walking (admittedly it was in a gale). Just a few scowling runners and some dog walkers.

Part of the National Cycle Network, apparently (not just a muddy path in the woods)

New and old bridges (HS2 and Grand Union Canal)

Stage 12 of #LondonLoop. Intersecting walking and cycling routes much of the way

Nature doing its best to reclaim this bench

And possibly one of the most joyless playground in London (some stiff competition). Presumably ticks off a condition in the development's planning permission.

West Drayton

Slough Arm worth defending in WW2

"Slough Arm" canal. Opened 1882. Last (non-big ship sized) canal built in Britain.

193 bridges to Birmingham. #GrandUnionCanal

...and pretty muddy.