Blessington Reservoir, also known as Poulaphouca Reservoir, is an artificial lake in County Wicklow, Ireland. Created in the 1940s following the construction of a dam on the River Liffey, today it offers a bucolic setting just forty kilometers southwest of Dublin. An ideal haven of peace and tranquillity, it is an ideal place for nature lovers, water sports enthusiasts and outdoor enthusiasts alike.
The Poulaphouca Reservoir – © Sonder Visual – Fáilte Ireland
Blessington Reservoir has a history closely linked to Ireland’s economic and energy development. Its origins can be traced back to the 1930s and 1940s, a period when Ireland wanted both to increase its electricity production and better manage its drinking water reserves. The Poulaphouca site on the River Liffey was identified as an ideal location for a hydroelectric dam. The construction of the Poulaphouca dam (and hence the creation of the reservoir) was overseen by the Electricity Supply Board (ESB), the body responsible for the electrification of the country.
Work began around 1937 and spread over several years, sometimes interrupted by the difficulties of the Second World War. By flooding the surrounding land, the new reservoir swallowed up farms, houses and even some roads, forcing the displacement of several local families. Despite this upheaval, the project was considered essential at the time to strengthen Dublin’s drinking water supply and the region’s electricity supply. Alongside its utilitarian role, Blessington Reservoir quickly became a tourist attraction. From the 1950s-1960s, trout and pike fishing began to be practiced here, as well as water sports such as sailing.
The surrounding countryside, between the Wicklow hills and mountains, attracted many walkers who came to enjoy the natural setting and charm of the Irish countryside. Today, the history of Blessington Reservoir is still very much alive in local anecdotes: some locals still evoke memories of submerged buildings, while walkers can spot the remains of old stone walls during exceptional drought conditions.
The Poulaphouca Reservoir can be explored by bike – © Sonder Visual – Fáilte Ireland
When it comes to activities, Blessington Reservoir has plenty to offer. Fishing enthusiasts can fish for trout and pike in peaceful surroundings, while water sports fans can enjoy sailing, kayaking and paddle boarding.
If you’re more of a hiker, take the Blessington Greenway, a path that skirts the lake and winds its way between rolling green hills and wooded lanes. The view of the Wicklow Mountains in the background often wins over even the most demanding hikers!
For history and culture buffs, a stop at Russborough House is a must. Located just a few kilometers from the reservoir, this sumptuous 18thᵉ century mansion captivates with its Palladian architecture and manicured gardens. The artworks on display inside round off the visit nicely, while also providing an insight into the region’s aristocratic past.
If you prefer the wilderness, there are many hiking trails nearby leading to the peaks and valleys of the Wicklow Mountains, ideal for a breath of fresh air. In the evening, there’s nothing like a stopover in the small town of Blessington, where you can enjoy a pint in a local pub or sample traditional Irish cuisine, made with fresh produce and simple ingredients. With its relaxed atmosphere, it’s the perfect opportunity to share a few anecdotes with friendly locals who are proud of their region.
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