HUGE steam engines are rolling on to site for this year’s Great Dorset Steam Festival.

The massive event attracts more than 200,000 to a farm near Tarrant Hinton and is due to start tomorrow and finish on Sunday.

The organisers say it is the world’s largest heritage and cultural event.

The steam tractors are the star attractions but there are also threshers, vintage vehicles, rural craft shows, animal displays, bands, car stunts and a fairground.

The Wurzels are returning for the fourth year to the outdoor concert stage, which has a capacity of 3,000.

The International Big Pete Monster Truck Display Team will also be back with racing, car crushing and a tug of war where a car is pulled in two.