PUPILS and staff from the William Henry Smith School, Brighouse, completed the Yorkshire three peaks challenge.
Eight boys and five staff climbed Pen-y-ghent, Whernside and Ingleborough.
Staff member Gavin Moody said it was a tough 11 hours.
“We set out at 5:30 am and began in bright sunshine at Pen-y-ghent and as we climbed the weather took a turn for the worst,” he said.
“Waterproofs were on and off regularly and it became pretty extreme at times with extremely hot AND wet weather.
“We stuck together and six of the boys completed all three peaks with the other two having sustained injuries on Whernside.”
Mr Moody said it was a significant achievement for the boys who all have social emotional and behavioural difficulties.
Thye raised around £350 for the Friends of Highbury School, Rastrick.