A unique, once in a lifetime opportunity awaits runners looking for an extraordinary evening event that combines physical exertion with mental fortitude. This quirky race takes place under the iconic River Thames, offering participants a rare chance to run through history and beneath one of London's most famous landmarks. The Tunnel 10km London run begins at the historic Greenwich foot tunnel, situated right next to the renowned Cutty Sark ship in the heart of London. The starting point offers runners a picturesque backdrop as they prepare for their challenging journey underneath the Thames. Participants will embark on a course that navigates through the flat section inside the tunnel from Greenwich towards the Mudchute exit. This route is designed specifically along the level path, avoiding the steep stairs at either end to focus solely on endurance and mental strength over distance rather than elevation changes. The Tunnel 10km London run requires runners to complete an impressive total of 27 laps within the confined space of the tunnel itself, making it a mentally taxing endeavor that tests one's resolve and stamina. This event is not just about crossing the finish line but also pushing past personal limits in a setting far removed from traditional running venues. With its blend of historical significance, unique location, and challenging course layout, this race promises an unforgettable experience for all those who dare to take part. The Tunnel 10km London run invites runners seeking both adventure and introspection into the heart of one of England's most historic cities. By participating in this event, individuals will not only test their physical capabilities but also explore new mental boundaries while running through a tunnel that has witnessed centuries of history flowing above its surface. For those who enjoy pushing themselves beyond conventional limits and are eager to experience something truly distinctive within the world of long-distance races, the Tunnel 10km London run is an event not to be missed. It offers more than just a race; it provides an opportunity for personal growth and memorable achievement in one of the most iconic settings imaginable. Join other adventurous souls as they descend into this historic tunnel beneath Thames Water and emerge on the other side, transformed by both physical exertion and mental triumphs gained along the way. This event promises to be a highlight not just for runners but also for all those who appreciate unique challenges set against stunning backdrops that blend history with modern athletic pursuits. Register now to secure your place in this exclusive running experience where every step taken brings you closer to conquering both physical and mental barriers within the shadow of London's most cherished landmarks.
Races Offered
Tunnel 10km (Greenwich Foot Tunnel)
Sep 28, 2025
straighten
Distance —
10K
terrain
Type —
Running
timer
21:00
sell
£28.00
Weather History
These values represent the 3-year monthly averages for June in London.
thermostatTemperature
12.5° / 22.6°
wb_sunnyFeels like
10.6° / 20.0°
light_mode
Avg sunshine hours
12h 55m
water_drop
Avg rainfall
1.2 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
13.0 km/h (Gentle breeze)
opacity
Sweat loss rate
Moderate
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (5.6)
humidity_mid
Humidity
66.6%
wb_twilight
Sunrise
04:44
nightlight
Sunset
21:17
About London
Learn more about the host city, London.
Vibrant and truly multicultural, London is a megalopolis of people, ideas and frenetic energy. The capital and largest city of the United Kingdom sits on the River Thames in South-East England. Greater London has a population of a little over 9 million. Considered one of the world's leading "global cities", London remains an international capital of culture, music, education, fashion, politics, finance and trade.