The man was bitten on the thumb by the adder
A 24-year-old holidaymaker was flown to hospital by air ambulance after being bitten by an adder.
The 2ft (60cm) long snake nipped him on the thumb at Lligwy Beach, near Moelfre on the east coast of Anglesey on Monday.
A paramedic administered two shots of adrenalin then the man, who was groggy, was flown by an air ambulance to hospital at Ysbyty Gwynedd in Bangor.
A spokesman said the holidaymaker, from Cheshire, was fully conscious.
He was under observation on a medical ward.