Llyn Alaw
Isle of Anglesey, United Kingdom
Llyn Alaw (Welsh for 'lily lake') is a man-made reservoir on Anglesey, North Wales, managed by Dŵr Cymru Welsh Water. It is a shallow lake and was built in 1966. It is a Site of Special Scientific Interest and a destination for overwintering birds.
Reservoir data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).