Bunker Mentality (12.5 miles, Circular)

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Car parks, bridges, etc. Plenty of history around Surrey, ranging from Bronze Age barrows to this walk's common identifier - WW2 Bunkers.
The North Downs form a natural barrier, so the plan was to use this as a line to stop any invasion. There's dozens of pillboxes along the hills, but we'll be visiting 30 on this walk, which means there's a fair bit of up and down the slope. We'll leave Gomshall station at 10:00, before cutting up towards Blatchford Down and heading East towards the borders of Ranmore Common. After our first few pillboxes, we'll turn back North of Gomshall through Hackhurst Down, past Netley Park and Shere Woodlands before looping back into the valley. We'll pass through Shere with the opportunity to stop for a drink, and then back to the station.
Car share if you can, and bring a pen.
GPX with bunkers and hill profile here: https://www.plotaroute.com/route/2083968
We've provided an automated estimate of the end time and this will be affected by many factors - please only use as a guide. The description above may also have specific notes on ending details.