Length: 13.1 km (8.1 miles). Toughness 1/10
Take a District line tube (towards Upminster) to arrive at Hornchurch by 11:30. It's about a 50-minute journey from central London. Hornchurch and Upminster are both in TfL Zone 6.
Alternatively, take a c2c train from Fenchurch Street to Upminster (no later than the 11:02 to Laindon, arriving at 11:25) and double back a couple of stops on the District line.
There are six c2c trains an hour back to Fenchurch Street from Upminster, plus frequent District line tubes.
An impressively large number of walks inside the M25 are regularly being added to the SWC site but most are rather hidden away on a “Short Walks” page which tends to be overlooked by weekend walk posters. Some are more than long enough to qualify as a ‘day walk’, not least this one with its short optional extension included. It's a varied stroll through a succession of green spaces in the valley of the reed-lined River Ingrebourne, taking in habitats partly created from quarries and a former WW Ⅱ airfield. The notes also promise a fine view of the London skyline.
In common with other Short Walks there's no dedicated stop for a pub lunch, so have a decent brunch before you set out. There's a café in the Ingrebourne Valley Visitor Centre about two-thirds of the way round for a pit stop, plus a choice of refreshment places in Upminster if you want some more substantial fare at the end of the walk.
As usual there's no leader, so please download the GPS file and/or the directions from the L=short.34 page.