Experts have warned people heading to the North Wales coast this summer to be on their guard.
It is a popular destination for people from Merseyside, but the poisonous weever fish - widely viewed as the UK's most toxic fish - can also be found around North Wales during the summer. The fish have stung many people on the Gwynedd coast over the years and though they are only around 8cm long, they are able to deliver excruciating pain.
Weever fish have three poisonous spikes on their backs and are most commonly found on the water's edge. Wild Swim Wales warned earlier this month that the fish are known to produce pain as bad as childbirth if you stand on them.
