20km 12.2 miles
A pretty, rural walk, teetering on the edge of zone 6. Hilly bits, good views and, in spring, wild flowers and bluebell woods. Shortly after lunch, you pass Down House, once home to Charles Darwin. It is open to visitors (Admission £11:80).
Trains: Get the 10:06 Sevenoaks train from Charing Cross (10:13 London Bridge, 10:23 Lewisham, 10:29 Hither Green) arriving Knockholt at 11:00.
You can also get the 10:25 Hastings train and change onto the above at Orpington (platform 5) but the connection is a bit tight (arr 10:50, dep 10:54).
Trains return at xx:28 and xx:58. You can save 12 minutes by changing to a faster train at Orpington (platform 2). It is within London Zone 6, so a zones 1-6 travelcard would do. Otherwise, get a return to Knockholt.
Lunch: The Queens Head, Downe (01689)852145 or the George and Dragon (01689) 889030 across the road.
Tea: Arthur's at Coolings Garden Centre is almost on the route but closes early (4:15 on the dot).
A diversion to the Cock Inn in Halstead (see text) is another possibility.
To get to the station, allow 45 mins from Coolings and 30 mins from the Cock Inn.
Walk Directions here