Organisers are urging people to sign up for an annual sponsored walk for a cancer charity as it suffers a slump in registrations.

The walk alongside the Bure Valley Railway in aid of Macmillan Cancer Support attracted more than 500 people last year, and is a key fundraiser for the charity's work in support people with cancer and their families.

Its fundraising manager Helen Chapman said entries were down for the event which takes place on Saturday and Sunday April 21 and 22 and people were finding it harder to get sponsorship.

But she called on people to sign up, and to contact her team who could give fundraising tips.

The walk offers the choice of 12 different walks between Aylsham and Wroxham, with a ride back to base on the narrow gauge railway.

They include a three-mile walk for weekend strollers, a six-miler for those wanting more of a challenge and a nine-mile route for the keen walker.

With more than 5,000 people a year being diagnosed with cancer in Norfolk, Macmillan needed support to grow its services said Mrs Chapman.

For information about the event visit macmillan.org.uk/walking, or contact Helen Chapman on 077935 79365. For cancer information and support, contact the Macmillan Helpline on 0808 808 00 00.