Alton Towers' new roller-coaster, billed as the first of its kind in the world, will preview today, ahead of its opening on May 23.
'The Smiler' cost £18 million to build, has a drop of 30 metres and a maximum speed of 52 miles per hour.
The ride is the world's first 14 looping roller-coaster.
More top news
Pollen levels will rise towards the end of the weeks as warmer weather sets in.
Generally cloudy with occasional rain overnight.
Bright spells and showers this evening. Cloudier and cooler tomorrow.