"There are a good few regulars at Chill Factore who are wizards down the slope but this is the first time we've seen witches at the attraction." said Morwenna Angove, Chill Factore spokeswoman.
"We're not worried about the Halloween fires burning too brightly here though - it's cold enough to freeze even the most ghoulish of underworld creatures on the slope. They don't call us Chill Factore for nothing."
Chill Factore, Manchester's indoor real snow centre has the UK's longest indoor real snow slope (180 metres) and is four years old in November.
Anybody taking part in a lesson on 31st October will receive a special Halloween trick or treat. Plus, anyone who comes along in Halloween fancy dress on the day will receive a treat!