They began the gruelling ascent the following day and had managed to scale 1000m by Sunday night.
Overnight two of the team camped out along with the suit on the mountain while the others descended to stay at Fort William’s Underwater Centre, which provided free support.
Reunited by 9am on Monday, the team completed the climb in under four hours, and celebrated their achievement at the summit.
Their target of raising £4430 – £1 for every foot climbed – was exceeded as they collected around £5000 in online contributions plus cash donated by well-wishers along the way.
The challenge was the idea of former Royal Navy clearance diver and mountaineer Ginge Fullen, 50, who lives in Fort William, and Ty Burton of the HDS, which provided the suit and expert support.
The proceeds of the challenge will be divided between the HDS, Lochaber Mountain Rescue Team and the family of Saman Kunan, the Thai diver who died during the recent Tham Luang cave-rescue operation.