Top 5 Lakes in Jersey
Best lakes in Jersey include a variety of reservoirs and ponds that provide significant water resources and recreational opportunities. The island's landscape features both natural coastal ponds and man-made reservoirs, often nestled within valleys. These water bodies are integral to Jersey's infrastructure and offer diverse natural settings for visitors. Many are surrounded by areas rich in flora and fauna, contributing to the island's ecological diversity.
Best lakes in Jersey
- The most popular lakes is Agois Island, an other natural feature off the north coast. This small island was excavated in the 1950s and 1970s, revealing Iron Age pottery and the remains of 27 circular huts.
- Another must-see spot is Val de la Mare Reservoir, a lake that is the second largest reservoir in Jersey. It holds up to 938.7 megalitres of untreated water and is home to many species of birds and wildlife.
- Visitors also love Waterworks Valley Reservoirs, a series of lakes offering beautiful views. At the top of the valley is Hamptone, an old Jersey Farmhouse that is now a museum.
- Jersey is known for its reservoirs, coastal ponds, and other natural water features. These include man-made water bodies crucial for water supply and natural formations along the coast.
- The lakes in Jersey are appreciated by the komoot community, with 17 upvotes and 12 photos shared by visitors.
Last updated: May 13, 2026
Val de la Mare Reservoir
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The reservoir has a floating reservoir mixer “ResMix” to improve and maintain water quality. It works by slowly mixing and circulating oxygen-rich water from the surface to the bottom of the reservoir. Installed in 2016 it is a very efficient and cost-effective system which helps to reduce and control algae and manganese levels in the untreated water.
Source: jerseywater.je
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Agois Island
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This small island was excavated in the 1950's and the 1970's. Large quantities of Iron Age pottery were found from a time when the island was probably still connected to mainland Jersey. The hollow remains of 27 circular huts and 2 rectangular buildings were found on the slopes and summit. the site might have included a small community of hermit monks. Source: prehistoricjersey.net
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Waterworks Valley
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Coastal Pond
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Waterworks Valley Reservoirs
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Tips from the Community
At the ponds you can often meet anglers
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Beautiful views of the reservoirs in Waterworks Valley. At the top is Hamptone, an old Jersey Farmhouse that is now a museum.
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This road can get very wet in winter; to access it from the seafront go up past First Tower, up Mt Cochon a short way and through St Andrew's park to Rue de Trachy. This avoids the very dangerous junction at the bottom of Mt Felard.
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A series of reservoirs along the valley give this road a unique feel - the sun reflecting off the water and the bird life add to the atmosphere.
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Since much of this path is privately owned, this beautiful, green pond is sure to irrigate.
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This is "L'île Agois", off the north coast, 750 m west of Devil's Hole. This small island was excavated in the 1950's and the 1970's. Large quantities of Iron Age pottery were found from a time when the island was probably still connected to mainland Jersey. The hollow remains of 27 circular huts and 2 rectangular buildings were found on the slopes and summit. the site might have included a small community of hermit monks. Source: prehistoricjersey.net
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The reservoir has a natural wealth of flora and fauna and is home to many species of birds and wildlife. Owls are also particularly encouraged at the reservoir – see if you can spot their nesting boxes. An arboretum has also been created at the reservoir. This garden devoted to trees provides a lush and safe environment for wildlife. Source: jerseywater.je
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The reservoir was constructed in 1962 and is the second largest reservoir in Jersey (Queen’s Valley is the largest). The reservoir holds up to 938.7 megalitres of untreated water (enough to supply Jersey with water for approximately five weeks). Water feeds into the reservoir from its catchment area of 350 hectares (865 acres) which extends towards St Ouen’s Parish Hall in the North and La Grande Route de St Pierre in the East. Water is also pumped to Val de La Mare from the desalination plant when it is in operation. The reservoir has a floating reservoir mixer “ResMix” to improve and maintain water quality. It works by slowly mixing and circulating oxygen-rich water from the surface to the bottom of the reservoir. Installed in 2016 it is a very efficient and cost-effective system which helps to reduce and control algae and manganese levels in the untreated water. Source: jerseywater.je
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Frequently Asked Questions
What are the most popular lakes in Jersey?
Among the most appreciated lakes in Jersey are Val de la Mare Reservoir, known for its rich flora and fauna, and the scenic Waterworks Valley Reservoirs, which offer beautiful views and are home to an old Jersey farmhouse museum. Agois Island, an other natural feature off the north coast, is also popular for its historical significance.
Are there family-friendly lakes in Jersey?
Yes, Val de la Mare Reservoir and Waterworks Valley Reservoirs are both categorized as family-friendly. They offer accessible environments for visitors of all ages to enjoy the natural beauty and recreational opportunities.
What kind of wildlife can be observed at Jersey's lakes?
Val de la Mare Reservoir is particularly rich in wildlife, being home to many species of birds and other animals, with nesting boxes specifically for owls. The arboretum there also provides a safe environment for wildlife. The Waterworks Valley also boasts diverse bird life, and anglers can often be found at its ponds.
Are there historical sites or landmarks near Jersey's lakes?
Yes, Agois Island is a significant historical site where Iron Age pottery and remains of circular huts were discovered. Near the Waterworks Valley Reservoirs, you can find Hamptone, an old Jersey Farmhouse that now functions as a museum, offering a glimpse into local history.
What outdoor activities can I do near Jersey's lakes?
The areas around Jersey's lakes offer various outdoor activities. You can find numerous running trails, explore the island on gravel biking routes, or embark on scenic waterfall hikes. These activities allow you to experience the diverse landscapes surrounding the lakes.
Are there specific trails or walks around the reservoirs?
Yes, Val de la Mare Reservoir features trails that are popular for walks, allowing visitors to explore its natural wealth of flora and fauna. The Waterworks Valley also offers roads and paths with unique views of the reservoirs, though some sections can be wet in winter.
What are the unique natural features of Jersey's lakes?
Jersey's lakes include both man-made reservoirs crucial for water supply and natural formations. Val de la Mare Reservoir is notable for its extensive flora and fauna, including an arboretum. Agois Island is a unique natural feature off the north coast, historically connected to the mainland. The Coastal Pond is a privately owned green pond that contributes to irrigation.
What is the size of Val de la Mare Reservoir?
Val de la Mare Reservoir is the second largest reservoir in Jersey, capable of holding up to 938.7 megalitres of untreated water. Its catchment area spans 350 hectares (865 acres).
Can I go fishing at Jersey's lakes?
Yes, fishing is a popular activity at some of Jersey's water bodies. Anglers can often be found at the ponds within Waterworks Valley, enjoying the serene atmosphere.
What do visitors enjoy most about Jersey's lakes?
Visitors particularly appreciate the beautiful views offered by the reservoirs, such as those in Waterworks Valley Reservoirs, and the rich bird life and natural surroundings found at places like Val de la Mare Reservoir. The historical significance of sites like Agois Island also adds to the appeal.
Are there viewpoints around Jersey's lakes?
Yes, several lakes and reservoirs offer excellent viewpoints. Val de la Mare Reservoir and Waterworks Valley Reservoirs are both noted for their beautiful views. Agois Island also provides a viewpoint, offering scenic perspectives of the north coast.
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