This is the moment the UK’s most venomous snake was seen near a popular beauty spot – as police issue an urgent warning amid an increase in sightings.
The terrifying clip captured by a hiker shows a large adder in the undergrowth on a mountain in Wales on Wednesday morning.
It was filmed by Lorraine Flower while she was out walking on the Blorenge mountain, near Abergavenny, Monmouthshire.
It comes just two days after South Wales Police urged people to keep their dogs on leads following an increase of adder sightings in the area.
Last month, one of the venomous snakes was spotted swimming amongst the rocks on Wales’s ‘most Instagrammable hidden beach’.
Lewis Perrin Williams was exploring the scenic Porth Wen in Anglesey when he saw the adder in the water on April 7.
‘I was just standing on the beach when I saw it fall down from the undergrowth overhanging a small cliff,’ Mr Perrin Williams said.
‘That’s how it ended up on the beach – I think he might’ve been a bit sleepy. I found a plank and took him back up to the undergrowth.’
Terrifying footage shows the moment the UK’s most venomous snake was seen near a popular beauty spot in Wales

Last month, one of the venomous snakes was spotted swimming amongst the rocks on Wales’s ‘most Instagrammable hidden beach’

Logan Mathers, 17, was walking the family dog, Donnie (pictured), when an adder shot out and bit the two-year-old Jack Russell on the face
Meanwhile, warnings were also issued after a Jack Russell was killed by an adder bite in Thetford Forest, Suffolk.
‘Traumatised’ Logan Mathers, 17, was walking the family dog, Donnie, when an adder shot out and bit the two-year-old Jack Russell on the face.
The dog was then taken straight to a vet for treatment while slipping in and out of consciousness.
Urgent medical attention is needed if you are bitten by an adder, although they tend to only be dangerous to the very young, ill or old, according to the Wildlife Trust.
Adders tend to be relatively small, stocky snakes that prefer woodland, heathland and moorland habitats.
They can be identified by their greyish colour if male and reddish-brown colour if female.
Adders have a dark and very distinct zig-zag pattern down its back, and red eyes.
Adders hibernate from October, emerging in the first warm days of March, which is the easiest time of year to find them.