If you're only training for a half mara, some nice runs on the North/South Downs or Pilgrims Way are good options closer to home. Less hilly, but you could get out of London, do a few good hours running and get home in daylight easily enough.
@kl started
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If you're only training for a half mara, some nice runs on the North/South Downs or Pilgrims Way are good options closer to home. Less hilly, but you could get out of London, do a few good hours running and get home in daylight easily enough.