Police and council officers are warning people to stay away from quarry pools in Gwynedd.
It follows reports of recent incidents at Nantlle and Llanberis involving people trespassing and jumping off cliffs during the warm and dry weather.
Authorities say trespassers are falling foul of Welsh Government guidelines to stay in their local area and only go out for essential activities during the COVID-19 outbreak.
Superintendent Richie Green from North Wales Police said: ”Sadly over recent years, there have been tragedies in the region whereby people have gotten into difficulty after entering quarry pools.”
”The water is extremely cold and the hidden dangers are immense which can quickly lead to something altogether more serious.”
”Although it can be very tempting to jump into the nearest pool or lake to cool down on a hot day, or to swim in the water at disused quarries, the water depths are huge – up to 60 metres – and it can be very difficult to get out due to the steep faces.”
”As well as the dangers associated with swimming at unsupervised and often remote places, jumping from the rocks also puts people in danger. Swimming at disused quarries is a very dangerous practice and I would appeal to all youngsters and anyone else to please stay away.”
Gwynedd Council said it was more important than ever for people to respect the lockdown rules that are in place.
They’ve warned people to not put themselves and others at ”unnecessary risk” by breaking into the Glyn Rhonwy site at Llanberis, where there is also a former bomb storage facility.
Councillor Gareth Thomas said: ”The former industrial site at Glyn Rhonwy is closed off for a reason. Anyone who ignores the numerous signs placed on the perimeter fencing is putting themselves in unnecessary danger.”
”The quarry pools that have been used for swimming by trespassers contain a number of potential hazards which could cause serious injury or worse, including under-water debris and jagged slate shards. It should also be remembered that the water temperature in these pools is usually dangerously cold even during prolonged periods of warm weather.”
”We have in the past reported this matter to North Wales Police and we would urge anyone who witnesses people trespassing on the site to contact them immediately by phoning 101 or phoning 999 if someone is in danger.”
”Our message to the public is simple – please keep out of this dangerous site. We are also appealing to parents to ensure that their children are aware of the dangers of trespassing on old industrial sites and to avoid swimming in any pools or lakes which may contain hidden dangers such as underwater currents or sudden deep water.”
Police added that the quarries were private properties and anyone found swimming or on the rocks would be trespassing.