Bath
combo16 Aug 2026
27°14°
2026 Two Tunnels Marathon
42KComboPast
Distances5K10K21K
BonusesScenic
Aug 16, 2026 · 1 day🇬🇧 Bath, United Kingdom
Key Facts
---Standouts
The Two Tunnels Marathon 2026 is a two-lap off-road marathon in Bath, UK, running through old railway tunnels and canal towpath, billed as Britain's longest underground race. The course starts and finishes at Brickfields Park and includes the 408m Devonshire Tunnel and the 1,672m Combe Down Tunnel, with a total elevation gain of 250m.
Why attend here
Run through Bath's UNESCO-listed heart, past the Roman Baths and Royal Crescent, then escape to the rolling hills and canal paths that surround the city. August brings long, warm days perfect for exploring the Abbey and lingering over a post-race cream tea, or a pint of local ale by the river.
Distance from you
From Columbus, US to Bath, GB
~7.6h · 6,069 km
weather on the day
ComboPart of 5 combo trips
Complexity in Cell Types, Networks, Technical Approaches and Translational Therapeutics - Mechanisms of Epilepsy and Neuronal Synchronization Gordon Research Conference + 2 RacesAug 16 – Aug 23Castelldefels +2 sports3rd Global Summit on Diabetes and Endocrinology + 2 RacesAug 16 – Aug 23Zurich +2 sportsScandinavian Congress of Hand Surgery – SSSH Congress Oslo 2026 + 4 RacesAug 14 – Aug 23Oslo +4 sportsSportscardiology and future proof performance! + 3 RacesAug 14 – Aug 23Amsterdam +3 sportsXXXVIIIth Edinburgh Anaesthesia Festival 2026 + 4 RacesAug 14 – Aug 23Edinburgh +4 sports
Event Details
Elevation
250m
Course
Roman Baths, Abbey, Royal Crescent — UNESCO city
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