River Bann
Lough Neagh ( ) is a large freshwater lake in Northern Ireland. It is the largest lake by area in the British Isles, with a surface area of . It supplies 40% of Northern Ireland's water. Its main inflows are the Upper River Bann and River Blackwater, and its main outflow is the Lower River Bann. Its name comes from Irish , meaning "Eachaidh's lake". The lough is owned by the Earl of Shaftesbury and managed by Lough Neagh Partnership Ltd.