London Marathon on Sunday (26 April 2026) - check bus / rail diversions & road closures if spectating

Blackheath and Greenwich Park have lots of metal barriers lined up ready to be installed for Sunday's event. If you're planning to watch the runners at various points around London here is some hopefully useful info. A steward at Greenwich Park told me yesterday that the park would be closed to the general public until midday but I've not found any information to confirm this (the park is used for the start of the marathon but I'd assume it would be accessible to spectators walking through).

Time Out's list of tube and rail closures this weekend https://www.timeout.com/london/news/london-travel-disruption-this-weekend-full-list-of-tube-and-train-closures-for-april-25-26-2026-042326

Road closures and info for residents in these areas areas - https://www.londonmarathonevents.co.uk/london-marathon/road-closures

• Canary Wharf
• Greenwich
• Isle of Dogs
• Queen Anne’s Gate
• Rotherhithe
• Trafalgar Square
• Wapping
• Westcombe Park

Good luck runners :)
Jo

View from Greenwich Park over Blackheath - 22 April 2026.

Part of Bower Avenue closed off in Greenwich Park, near Blackheath Gate and an entrance to the Flower Garden - 22 April 2026.

The other part of Bower Avenue, near Blackheath Gate. You can see Cherry Tree Row in full blossom in the distance - 22 April 2026.