Britain's deadliest caving disaster killed 6 friends in gruesome deaths

Mossdale Caverns in the Yorkshire Dales became the scene of one of the most devastating tragedies in caving history when a group of friends set out on an expedition from which they would never emerge.

Today, the caverns remain closed to public access and are classified as exceptionally hazardous, rated at Grade 5, thanks to its water-logged passages. However, they were once accessible, and even the most seasoned cave explorers proved unable to survive the multiple hour-long crawls through its depths.

On 24 June 1967, the caving world was struck by tragedy when six of its members died whilst pursuing the hobby they cherished most.

That day, 10 cavers ventured into the caverns, but later on four members of the party chose not to proceed further and headed back out - leaving the remaining six to carry on their exploration. Upon departing, one of the group, Morag Forbes, opted to return, and when she arrived discovered the entrance was entirely flooded.

In a state of panic, realising six of her fellow cavers remained trapped inside, she sprinted more than two miles across the moorland to summon assistance and sound the alarm. It wasn't long before a specialist cave rescue squad reached the location, but the water level was so high it prevented even them from entering.

The rescue effort quickly evolved into what is regarded as the largest ever to have taken place in Britain, involving more than 300 personnel, coordinated by the Upper Wharfedale Fell Rescue Association, working alongside the Cave Rescue Organisation.

In an attempt to redirect the waters of Mossdale Beck away from the entrance, a trench was dug, but by the time the water had dispersed, it was too late.

Rescuers couldn't gain access to the cave until the next day, when they found five bodies. The group had become trapped and drowned in the cave due to severe flooding caused by a storm. The men who tragically lost their lives that day were David Adamson, Michael Ryan, Jeff Barton, Phil Whitham, and Ian Lawson.

Initially, the rescue team could only locate five bodies, with the sixth, John Ogden, still unaccounted for. His body was discovered the following day concealed in a small rift near the 'far marathon's section of the cave, after a search was led by Brian Boardman.

Michael Melvin, a fellow caver, has extensively shared his experiences of caving and the tragedy itself on his blog. He wrote about the night of the rescue, saying: "Looking at that scene that night, over two hundred cavers, some stripped to the waist, all working like fury to save their mates, I thought, 'What a fine bunch of people; if I had have been down there stuck, they would have been doing the same for me.'".

Despite nearly 60 years having passed since the horrific incident, it remains the deadliest event in British caving history. Due to the dangerous conditions, the coroner recommended the bodies should be left in situ and the cave sealed.

However, four years afterwards, the families reached an agreement that the bodies ought to be relocated and laid to rest alongside their fellow cavers. They were buried in the mud caverns, a chamber within the cave system believed to sit above the flood line.

In honour of the group of cave explorers and their tragic fate, a memorial plaque has been installed above the entrance on the cliff face. There is also a cairn positioned on the moors above where their remains lie, bearing an inscription.

It reads: "Mossdale memorial cairn – over the place in the cave where the bodies were found."