Vintage tractors, cars, motorbikes and steam engines will all be on display at the Dacorum Steam and Country Fayre next weekend.
The annual event, in its fifth year, raises cash for the Hospice of St Francis, which provides care for people with life-limiting illness across the county.
Visitors will be able to take trips on a tractor-trailer ride from the car park into the showground, as well as watch vintage tractors drive along a metal see-saw.
Restored cars and motorcycles will be showcased along with steam engines, and there will be archery demonstrations, donkey rides and face-painting.
Alison Briant, director of nursing and clinical governance at the Hospice of St Francis, will officially open the event at 2pm on Saturday, joined by Mayor of Dacorum Councillor Gillian Chapman and Mike Penning, MP for Hemel Hempstead.
Dacorum Steam and Country Fayre takes place at Greencroft Farm, Potten End, Hemel Hempstead, on Saturday, July 30 to Sunday, July 31 from 10am to 5pm.