London, UK · Marathon (26.2 mi / 42.2 km)
London Marathon route poster
A fast, flat tour of the Thames, from Greenwich to The Mall.
Upload your own GPX. No account, no sign-up.
The London Marathon course
The London Marathon starts on Blackheath near Greenwich and runs largely flat and fast along the south bank before crossing the river. Early miles pass the Cutty Sark, with the crowds among the loudest of any major.
The halfway point comes on Tower Bridge, one of the most photographed moments in road running, before the course swings east into the Isle of Dogs and Canary Wharf. The closing miles run west along the Embankment past the London Eye and Big Ben, finishing on The Mall in front of Buckingham Palace.
Cairn renders your real line over the actual Thames-side streets, the bridges, the parks, so the map reads as London, not an abstract squiggle.
Along the course
- Greenwich and the Cutty Sark
- Tower Bridge (halfway)
- Canary Wharf
- The Embankment
- Big Ben
- The Mall finish
From the finish line to your wall, in three moves.
No app to learn, no measuring, no typing your stats. The route does the talking.
- 01
Drop your route
Upload the GPX from your watch or app. We read the line and the numbers in seconds.
- 02
Shape it
Place your route on the map, pick a style, set your labels, choose what the wall remembers. All on your phone.
- 03
We print and ship
Pressed on museum-grade paper with archival inks, framed if you like, sent to your door.
Made to outlast the memory.
We print on heavyweight museum-grade matte paper with archival pigment inks, the kind that hold their depth for decades without fading. Framed editions come in solid wood with an acid-free mat, ready to hang out of the box. Every order is made to order and shipped protected, never rolled loose in a tube.
- Paper
- Heavyweight museum-grade matte
- Inks
- Archival pigment, decades without fading
- Frames
- Solid wood, acid-free mat, ready to hang
- Shipping
- Made to order, protected, never rolled loose
Questions, answered.
How do I turn my London Marathon into a print?+
Export your GPX from Strava, Garmin, or your watch app and upload it to the Cairn creator. We map your exact route over real London streets and set your time and distance beneath it.