Lightwater Valley is searching for two Bolton men who were among the first riders of their rollercoaster The Ultimate in 1991.
The theme park is looking to invite Christopher Nelson and Craig Johnston, who won a newspaper competition as 11-year-old boys to be on the first ride, to return as part of its 20th birthday celebrations.
They were joined by boxer Frank Bruno, who opened what was in its first ten years, the world’s longest rollercoaster.