Chelmer and Blackwater group logo.

Chelmer & Blackwater Group

We are the Chelmer & Blackwater Ramblers. We open the way for everyone in our local community to enjoy the pleasures of walking.

Join the Ramblers and enjoy

  • unlimited free access to 50,000 Ramblers group walks
  • a library jam-packed with thousands of tried-and-tested routes
  • a welcome pack teeming with top tips plus our Walk magazine
  • exclusive discounts from our partners
  • knowing your support is opening up more places to walk and helping more people discover the joy of walking

Overview

A London walk  through the River Ravensbourne Vally and linking three "peaks" Blythe Hill Fields, One Tree Hill and Hilly Fields all with extensive views over London.  The route has been extended to include Nunhead Cemetery.   

Friday, 6 February 2026
Start time:
11:00 am
Estimated finish time:
4:15 pm
Difficulty:
Moderate
Distance:
14.5km / 9.0mi
Ascent:
194.5m / 638ft
Type:
circular

The walk begins and ends at Lewisham DLR station.

There are steep steps on the climb to One Tree Hill - the highest peak at 80m.

Lunch is at Crofton Park - there is a pub (no need to pre-order), 4 cafes and an area for sandwich eaters.  

Features

  • Refreshments available (Pub/cafe)
  • Toilets available
  • Accessible by public transport
  • No car needed
  • No Stiles

Starting point

Grid reference:
TQ 38153 75849
Nearest postcode:
SE13 5FQ
what3words:
tonic.learn.image
Start time:
11:00 am

Meet outside Pret A Manager - just outside Lewisham DLR station entrance.

Join the Ramblers and enjoy

  • unlimited free access to 50,000 Ramblers group walks
  • a library jam-packed with thousands of tried-and-tested routes
  • a welcome pack teeming with top tips plus our Walk magazine
  • exclusive discounts from our partners
  • knowing your support is opening up more places to walk and helping more people discover the joy of walking