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Full Iron Triathlon distance with 4 laps in the famous Kielder Water, a cycle into the Scottish Lowlands then an off-road trail run along forest trails. It's a huge challenge on the legs!
Complete your own Odyssey on a journey of self-discovery in the Cambridgeshire countryside featuring a swim in the River Ouse, a scenic ride and a run around the beautiful town of St Neots.
A gruelling Ironman-style challenge set over a weekend starting with a 2.4-Mile Swim on Friday, 112-Mile Sportive on Saturday then a Marathon on Sunday, supported by the best crowds you'll ever find.