Mark Roberts said he was climbing the Parsley Fern Gully in the Gwynedd region when he lost his balance due to a large piece of ice falling, The Mirror reported Monday.
Roberts said he bounced off rocks and put his arms up to shield himself from ice during the plunge -- and ended up with just ankle injuries.
The climber wore a head camera and footage of his fall was posted online.
"I was a little dazed but ... not unconscious," Roberts said.
"The speed at which events took hold meant I knew it was going to go some distance," he said.
"There was no feeling of panic, more a concerted effort to protect my head and neck and be aware of what was below me, where I was heading and what I could do to slow and stop myself before I got to the more serious rocky outcrops.
"Interestingly, I had the foresight to check the cam was still attached and just hoped the vid had recorded that: It wasn't one for repeating!"
Rescuers said Roberts' helmet likely saved his life.