Phil Benbow, of North Wales Mountain Rescue Association, told the BBC that a "significant number" of calls were received each year from people who are not equipped properly.

"They make an assumption that because there's a cafe at the top and a train, that it's a walk in the park. It's not - it is the highest mountain in England and Wales and people need to respect that.

"Our team has been called to 173 rescues so far this year and that will be over 200 by the end of the year - the third year in a row we will have topped 200."

Mr French said he was surprised by "how cold I got".

"I was shaking uncontrollably and they covered me in tin foil," he said.

"On the train down I started to feel really sick and I started going deaf and my eyesight started going funny. I started getting really emotional so my dad, who was with me, decided to call an ambulance."