A UNIQUE triathlon charity challenge which is being held at three castles across the UK kicks off in Cheshire next month.

Cholmondeley Castle is the first venue for the Markel Insurance Challenge, starting on June 24.

The triathlon is open to teams of three who will compete for a £5,000 charity prize donated by Markel UK, the specialist insurer, and the winners will receive the latest iPad.

Each team must also set up an online donation page to ensure as much cash as possible is raised for charity.

The two other triathlons take place at Castle Howard in North Yorkshire on July 22 and Hever Castle in Kent on September 29.

Both events also have £5,000 charity prizes for the winners.

That means if the winners of the Cholmondeley challenge want to continue their sporting crusade they could potentially net £15,000 for their nominated charity.

Marketing manager Helen Walker said: “This is a fun event with a serious aim. The distances are not too demanding – 800 metres for the swim, 42km for the cycle and 8km for the run – so we hope to have plenty of teams at Cholmondeley who are prepared to rise to the challenge and raise money for their chosen causes.”

To compete at the Cholmondeley event register your team at www.castletriathlonseries.co.uk.