The Tough Mudder full and half marathons are coming to Lincolnshire for two weekends in May.
The events are taking place at Belvoir Castle near Grantham on May 12, as well as on May 19 and 20.
The May 12 event is an eight-hour overnight challenge and includes the Europe’s Toughest Mudder competition alongside the half and full marathon runs.
In Europe’s Toughest Mudder competitors go head-to-head to complete the most miles in an 8-hour period.
The weekend Tough Mudder on May 19 and 20 poses an even greater challenge with the Tougher Mudder obstacle course.
Entires for the competition start at £79 per person and team and corporate packages are available on the Tough Mudder website.