WORLD class horses converge on Blenheim Palace tomorrow morning for the first day of an international equestrian event.

The Blenheim Palace Horse Trials runs until Sunday, with showjumping classes, demonstrations and competitions alongside the event itself.

The competition started this afternoon with the first official horse inspection in front of the Ground Jury and the Veterinary Delegate.

This is followed by dressage, cross-country and show jumping over the following four days.

For more information and to buy tickets visit