Zara Tindall tumbled from her horse at the Burghley Horse Trials near Peterborough yesterday, but luckily escaped without injury.
The Queen's granddaughter was riding her horse 'High Kingdom' at the cross-country course when she slipped from the saddle and fell head-first into the water at a fence.
Fortunately, she appeared to walk away unscathed, if a little wet, but was seen by a doctor as a precaution.
The royal was watched by her rugby player husband Mike Tindall and their daughter Mia at the prestigious contest which has been going since 1961.
This year's three-day event will draw to a close on Sunday with £90,000 worth of prize money at stake for the overall winner.