25 runners are set to begin the 'holy grail of UK adventure' at Land's End.

The athletes will start the country's longest adventure race, Run Britannia, from Land's End to John O’Groats, passing through Cornwall from Monday 3 to Thursday, June 6.

The race, which has a fully supported route, spans a total of 1000 miles and will reach a whopping 70,000 feet in total elevation.

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The participants will run the most beautiful trails across England, Wales, and Scotland across 37 days, adding up to around 200 miles more than traditional routes.

The route has been devised by Rat Race, a leading adventure trip and event company.

Participants will avoid main roads, encounter a range of landscapes and some of the most recognisable landmarks in Britain.

They will follow some of the most renowned long-distance paths in Britain, including the Southwest Coast Path, Wye Valley Walk, Offa’s Dyke, Clyde Walkway, West Highland Way, and The Great Glen Way.

Runners will be provided with accommodation, meals, expert guides, an event doctor, professional support vehicles, safety staff and welfare support (plus a daily massage and physio support).

James Campbell, the trip leader, who completed the maiden journey in 2021, said: "Having worked in the sports event industry for a long time, I wanted to help create an adventure that was challenging, expertly supported and breathtakingly beautiful all at once, which we’ve achieved with Run Britannia."

Rat Race founder Jim Mee, said: "There is no doubt taking on this epic journey is a major physical and logistical undertaking, but we also have people of all ages, abilities and backgrounds taking part, who show that with dedicated training and support, a lifetime achievement like this one can be achieved by any runner or walker if they put their mind to it."

Potential entrants can now apply to participate in the 2025 Run Britannia adventure on https://www.ratrace.com/run-britannia.