Tips
51m
November 15, 2025
Amazing views across the lake to the castle and the Vallymount Road bridge.
Blessington Lakes is officially known as Poulaphouca Reservoir, and it's only one lake. Construction of the dam began in 1937 and by the time it was completed, and the valley flooded, it became the largest man-made lake in Ireland. It supplies water to Dublin and the water is used to power a hydroelectric power plant.
Blessington Lakes is officially known as Poulaphouca Reservoir, and it's only one lake. Construction of the dam began in 1937 and by the time it was completed, and the valley flooded, it became the largest man-made lake in Ireland. It supplies water to Dublin and the water is used to power a hydroelectric power plant.
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Nearby routes
Best routes near Blessington Lake beach
4
riders
47.7km
02:59
390m
390m
Moderate bike ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
Moderate
Details
Informations
Elevation 180 m
Weather
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Tuesday 20 October
9°C
3°C
84 %
Additional weather tips
Max wind speed: 34.0 km/h
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