DON your running shoes and head to Hatfield House to help raise money for sick children.

On Sunday, September 12, Theodora Children’s Trust will be holding a 5k fun run, in the grounds of the home of Lord and Lady Salisbury, to help raise funds to bring laughter to children in hospital.

All cash raised from the first-ever Jammithon run, which you can also jog or walk, will go towards the London-based charity’s clown doctors.

A charity spokeswoman said: “This year over 50,000 children and their families will be visited by a Theodora clown doctor.

“Theodora clown doctors bring smiles back to the faces of children and allow them to forget their environment for a few magical moments each week.”

In order to grow its programme, Theodora Children’s Trust wants to train six new clown doctors to visit an additional 15,120 children per year.

To do this the charity needs to raise �18,000 – and you can help the bid by registering for the fun run now.

The event starts at 11.30am.

Admission is �10 per adult runner and �5 per child (under 16).

Participants can bring up to four guests as spectators, free of charge, to enjoy the grounds and many activity stalls on offer. The entrance fee for anyone not with a participant is �10 a car, payable on the day.