Llyn Cefni, reservoir in the United Kingdom
Llyn Cefni is a man-made reservoir on the Isle of Anglesey that stores water for local use and serves as a nature area. The lake is fed by two rivers and surrounded by woodlands and fields, with walking paths that circle the shoreline.
A dam was built across the Afon Cefni river in the 1940s to create the reservoir and secure the island's water supply. An old railway line from the 19th century crosses the water on an embankment, a remnant from the days when trains still ran through the area.
The name Llyn Cefni comes from Welsh, with 'Llyn' meaning lake and 'Cefni' named after the river that feeds it. Today, locals use the area for quiet walks and nature watching, showing how the reservoir has become part of everyday island life.
The reservoir sits west of the town of Llangefni and has parking areas at both ends of the lake. A walking route of about 6 kilometers circles the water and takes roughly one and a half hours at a steady pace.
A striking detail is the abandoned railway line that crosses the water on an embankment, a path built before the reservoir was created. This unexpected railway structure offers visitors a tangible link to the area's industrial past.
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