page_title: National Cycle Route 21
hierarchical_section_title: National Cycle Route 21
caption_attribution_description: English: National Cycle Network Route 21 signs.
context_page_description: National Cycle Route 21 is part of the United Kingdom's National Cycle Network. It runs from Greenwich in South-East London south to Crawley, then east to Groombridge and south to Eastbourne, with a short final loop northwards again to its end at Pevensey.
  The route is approximately 150 km long. Several sections are not suitable for road bikes.
  Links to:
  National Cycle Route 4 at Greenwich which is the route's start.
  National Cycle Route 1 at Greenwich is a few hundred metres from the route's start.
  National Cycle Route 2 at Polegate and at Pevensey at the route's finish.
  National Cycle Route 20 at Redhill and at Crawley.
  The route forms much of the English section of the Avenue Verte, a planned long-distance cycle route linking London and Paris.
context_section_description: National Cycle Route 21 (or NCR 21) is part of the United Kingdom's National Cycle Network. It runs from Greenwich in South-East London south to Crawley, then east to Groombridge and south to Eastbourne, with a short final loop northwards again to its end at Pevensey.
  The route is approximately 150 km (93 miles) long. Several sections are not suitable for road bikes.
  Links to:
  National Cycle Route 4 at Greenwich which is the route's start.
  National Cycle Route 1 at Greenwich is a few hundred metres from the route's start.
  National Cycle Route 2 at Polegate and at Pevensey at the route's finish.
  National Cycle Route 20 at Redhill and at Crawley.
  The route forms much of the English section of the Avenue Verte, a planned long-distance cycle route linking London and Paris.
caption: NCR 21 sign near Crawley
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