Olympic silver medallist Mary King will take part in this year’s Golden Horseshoe Ride over Exmoor on May 16.
The popular event rider will ride the first quarter of the two-day 100 mile class, accompanied by an experienced competitor and riding a borrowed endurance horse.
She said: “I watched some of the endurance competition at last year’s World Championships and was really impressed by the fitness of the horses and the courage of the riders.”
“When I was invited to the Golden Horseshoe I jumped at the chance of trying it myself.
“It also gives me the opportunity of seeing something of Exmoor and experiencing the kind of challenge the competitors face.”
With the European Endurance Championships later in this year, organiser Barbara Wigley is hoping top riders will use the Golden Horseshoe as part of their preparations.
Speaking about Mary’s involvement she said: “We hope that her interest will highlight the sport to the equestrian world in general and to the general public.”