Wye Valley Tunnel Run 2026 (Marathon, Half Marathon, 10km & Colourburst)
About the Event
Embark on a distinctive running journey through Gloucestershire's most captivating landscapes as you traverse the serene Greenway and venture into history within the 1.1k long Tidenham tunnel. This race is tailored for all levels, from beginners to seasoned athletes, making it an inclusive event that welcomes runners of every background. The route winds its way through a blend of natural beauty and historical charm, offering participants an immersive experience filled with stunning views and rich cultural insights. To ensure everyone’s comfort and enjoyment, the race features staggered start times, allowing individuals to set their own pace regardless of whether they’re aiming for speed or simply soaking up the scenery. Once you cross the finish line, take pride in your accomplishment by claiming a unique finisher's medal that commemorates this special adventure. This event goes beyond being just another run; it offers an opportunity to connect with nature and delve into local history, creating unforgettable memories along the way for runners looking to explore new routes or simply enjoy the thrill of running through picturesque settings. Join us in what promises to be a memorable escapade that celebrates personal achievements while immersing you in Gloucestershire’s natural beauty and rich heritage. Sign up now to become part of an event designed specifically with runner enjoyment and camaraderie in mind.
Races Offered
500m Colourburst
Jul 19, 2026
straighten
Distance —
0.5K
terrain
Type —
Running
timer
08:00
sell
£10.00
2km Colourburst
Jul 19, 2026
straighten
Distance —
2K
terrain
Type —
Running
timer
08:10
sell
£12.00
Tintern Station Half Marathon
Jul 19, 2026
straighten
Distance —
21.1K
terrain
Type —
Running
timer
09:00
sell
£46.00
Tintern Station Marathon
Jul 19, 2026
straighten
Distance —
42.2K
terrain
Type —
Running
timer
09:00
sell
£60.00
Valley View Half Marathon
Jul 19, 2026
straighten
Distance —
21.1K
terrain
Type —
Running
timer
09:20
sell
£46.00
Valley View 10km
Jul 19, 2026
straighten
Distance —
10K
terrain
Type —
Running
timer
09:45
sell
£32.00
Weather History
These values represent the 3-year monthly averages for July in Sedbury.
thermostatTemperature
13.2° / 21.2°
wb_sunnyFeels like
11.6° / 18.8°
light_mode
Avg sunshine hours
10h 34m
water_drop
Avg rainfall
3.1 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
13.7 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
74.0%
wb_twilight
Sunrise
05:12
nightlight
Sunset
21:18
About Sedbury
Learn more about the host city, Sedbury.
Sedbury is a village in the Forest of Dean district of west Gloucestershire, England. It is located on the eastern bank of the River Wye, facing the town of Chepstow in Monmouthshire. The village is in the parish of Tidenham. It had a population of 3,535. Nearby are the villages of Tutshill, Woodcroft and Beachley.
