London’s “Greater London Loop” route covers the mostly flat “greater London” expansion and the Box Hill climb. It is essentially the “London Loop” with ~6km of flat roads added.
Route details:
Distance: 21km (13 miles)
Elevation Gain: 244m (800′)
Strava Forward SegmentStrava Reverse Segment
This at least makes London bearable now, Just cut out the Rain, The subway transition. I am sure we can be more imaginative than that. And the day night cycles. Lets face it most of us ride during the day so this cycle is not needed.