At 267m Botley Hill is the summit point on Cycle Orbital, but the climb for the most part is steady, with the steepest section the first mile crossing under the M25.
Not the most rural ride; Halstead and Knockholt are long villages. Just before Knockholt Church L Spinoff 5 link 4.1 for Sundridge, then just after, the arrival of the first spoke since Enfield, R Spoke 2E 4.3 from Cudham.
Just after Cycle Orbital takes a minor lane L 4.4 to Brasted Hill, a great viewpoint and picnic spot.
At Westerham Heights 7.2 (R Spoke 2W ) straight over on unadopted Chestnut Avenue. This descends to Clarks Lane - or the Westerham to Croydon B2024, a rare section of 60mph road - but it’s wide and views over the Weald magnificent. (NB Spinoff 5 can return from Westerham via any of these hills; this is the best graded).