Llyn Alaw

Llyn Alaw is a reservoir located in northern Anglesey that combines open water with vegetated margins and several small islands. The site features diverse shoreline habitats including reed beds and grasslands that support various bird species and wildlife communities.

This reservoir was built in the 1960s to supply freshwater to northern Anglesey by damming marshy lowland areas. Over time it has become recognized as a significant habitat for breeding and migrating birds.

This reservoir serves as a vital freshwater source for the communities of northern Anglesey and has become an important destination for bird watchers and nature enthusiasts. The place shows how local needs for water supply are balanced with the protection of wildlife habitats that thrive here.

You can walk along several paths around the water's edge and use designated bird hides to observe wildlife. Picnic areas are spread around the site, giving you comfortable spots to rest and enjoy views of the reservoir.

Several small islands within the water serve as nesting sites for common terns and are closed to visitors during breeding season to protect the birds. These isolated spots provide safe refuge for bird populations that face pressure in other places.

Location: Isle of Anglesey

GPS coordinates: 53.35278,-4.41389

Latest update: December 11, 2025 18:11