Top 7 Lakes around Cardiff
Best lakes around Cardiff offer a diverse range of aquatic environments within and near the Welsh capital. The region features both natural and man-made lakes, including former quarries and a significant freshwater bay. These areas provide varied landscapes for outdoor activities and are home to diverse wildlife. Cardiff's lakes contribute to its green infrastructure and offer recreational opportunities for visitors.
Best lakes around Cardiff
- The most popular lakes is Cardiff Bay Barrage, an other man-made structure that impounds freshwater from the rivers Ely and Taff. This project transformed Cardiff Bay into a large freshwater lake, creating a controlled water environment.
- Another must-see spot is Roath Park Lake and the Scott Memorial Lighthouse, a lake within a historic park. This peaceful lake is known for its ducks, birds, and an impressive lighthouse, offering a classic Victorian atmosphere.
- Visitors also love Lisvane and Llanishen Reservoirs, a trail through nationally important wildlife sites. These reservoirs are designated as Sites of Special Scientific Interest and offer various water sports and walking trails.
- Cardiff is known for its man-made lakes, historic reservoirs, and a freshwater bay. These include urban park lakes, former quarry lakes, and large-scale engineering projects, providing a variety of aquatic landscapes to explore.
- The lakes around Cardiff are appreciated by the komoot community, with over 170 upvotes and 30 photos shared across 8 highlights.
Last updated: April 26, 2026
Cardiff Bay Barrage
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Cardiff Bay
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Roath Park Lake and the Scott Memorial Lighthouse
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In the centre of the park sits the wonderful Roath Lake, a peaceful place to walk around with sights of ducks, birds, and an impressive lighthouse stood in the water. There is a lovely little café and plenty of places to picnic, so take a seat and enjoy the view.
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Lisvane and Llanishen Reservoirs
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Dogs are permitted on the café balcony, car park and Grab & Go seating area only and are not permitted anywhere else on the site, including the paths. Natural Resources Wales has advised that the risk from dogs to the fungi is too great. Waxcaps are very sensitive to changes in habitat such as fluctuations in soil moisture, temperature and nitrate levels which can reduce the production of fruiting bodies. In particular, sudden changes to nitrate levels on the site – from dog urine specifically – can have a detrimental effect on the fungi.
There is a fully accessible Visitor Centre with cafe, toilets, free wi-fi, room hire, equipment hire, changing rooms and other facilities include the boathouse, bird hide, education centre, nature trails and paths, bike parking/shelters and car parking.
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Rhydypenau Woods and Llanishen Reservoir
Highlight • Trail
Well-maintained dirt paths will lead you around the forest where there is a rope swing and stream to discover, a little something for the kids to enjoy too.
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Capel Celyn, The Drowned Village
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When the valley was flooded in 1965, the village and its buildings, including the post office, the school, and a chapel with cemetery, were all lost. Twelve houses and farms were submerged, and 48 people of the 67 who lived in the valley lost their homes.[2] In all, some 800 acres (3.2 km²; 320 ha) of land were submerged. A new reservoir, Llyn Celyn, was formed. Many of the stones from the original chapel were re-used in the construction of the new Memorial Chapel.
The water in the reservoir is used to maintain the flow of the River Dee (Afon Dyfrdwy) so that water may be abstracted downstream,[3] and additionally to improve the quality of white-water sports on Afon Tryweryn.
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Roath Park Wild Gardens
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View of the Lake in the Nature Reserve
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Tips from the Community
Adjoining Roath Park Lake is a wild garden with nice pathways and is a meeting place for many types of birds
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The Barrage connects Penarth to the Cardiff peninsula. It offers stunning views across the sea to one side, and the freshwater bay on the other. One of the highlights of the Cardiff Bay tour
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Cardiff Bay is a stunning pool of fresh water constantly refreshed by rivers Taff and Ely. Beautiful all year round!
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Every day, this narrow crossing offers a new perspective on life. It's a unique place where you feel enveloped in blue. Love it!
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Stunning little lake with a nice path going round it. Some nice views in particular from the Eastern point where a winding bridge gives the best sight across the whole lake
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Cardiff Bay is a freshwater lake created by the Cardiff Bay Barrage. It is the river mouth of the Rivers Taff and Ely
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Cardiff Bay Barrage is a significant engineering project located in Cardiff, Wales. Completed in 1999, the barrage was built to create a freshwater lake in Cardiff Bay by damming the River Taff and the River Ely. This project transformed the bay area, which was previously a tidal estuary, into a more controlled water environment. Key Features and Purpose: Tidal Control: The barrage helps manage tidal flows, preventing flooding and allowing for the creation of a stable freshwater environment. Recreation and Tourism: The area around the barrage has been developed for recreational use, including walking and cycling paths, boating, and various leisure activities. It has become a popular destination for both locals and tourists. Environmental Impact: The construction of the barrage altered the local ecosystem. While it created new habitats in the freshwater lake, it also raised concerns about the impact on marine life in the estuary. Hydropower Generation: The barrage includes a small power station that harnesses tidal energy, contributing to renewable energy production. Economic Development: The project played a crucial role in the regeneration of Cardiff Bay, leading to significant investment and development in the area, including residential, commercial, and cultural projects. The Cardiff Bay Barrage is often noted for its engineering complexity and its role in transforming the landscape and economy of Cardiff.
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The Cardiff Bay cycling route is a popular and scenic path that allows cyclists to explore Cardiff Bay and its surrounding areas. This route is known for its waterfront views, modern architecture, and access to various attractions. Here are some key features of the Cardiff Bay cycling route: Route Highlights: Waterfront Views: The route takes you along the picturesque Cardiff Bay, offering stunning views of the water, boats, and the surrounding landscape. Attractions: Along the way, cyclists can visit several key attractions, including: Cardiff Bay Barrage: A significant engineering project that created a freshwater lake and offers panoramic views. The Wales Millennium Centre: A landmark arts venue with distinctive architecture. Techniquest: An interactive science discovery center, great for families. Parks and Green Spaces: The route often passes through parks and green spaces, such as Butetown Park and Grange Gardens, providing places to relax and enjoy nature. Cycle Paths: The cycling route is generally well-marked and includes dedicated cycle paths, making it safer and more enjoyable for cyclists of all ages and skill levels. Links to Other Routes: The Cardiff Bay cycling route connects to other cycling paths in the city, allowing for extended rides into Cardiff and beyond. Tips for Cyclists: Bike Rentals**: There are options for bike rentals in the area if you don’t have your own. Safety Gear**: Always wear a helmet and follow local cycling rules for a safe experience. Check Weather**: The weather can change rapidly, so it’s good to check forecasts before heading out. The Cardiff Bay cycling route is a wonderful way to experience the vibrant atmosphere and scenic beauty of Cardiff Bay while enjoying an active day outdoors.
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Frequently Asked Questions
Which lakes around Cardiff are best for walking and hiking?
Many lakes around Cardiff offer excellent walking opportunities. For a historic park setting, Roath Park Lake provides a peaceful stroll. Cosmeston Lakes Country Park features extensive trails through diverse habitats, including woodlands and meadows. For a more challenging experience, consider routes like the 'Castle Coch and Craig Yr Allt loop' or 'Rhymney Valley Ridgeway and Caerphilly Mountain' which are part of the hiking guide around Cardiff.
Are there family-friendly lakes in the Cardiff area?
Yes, several lakes are great for families. Roath Park Lake is very popular, offering boating, an adventure playground, and the Botanic Garden. Cosmeston Lakes Country Park also has an adventure playground and the unique Cosmeston Medieval Village. Rhydypenau Woods and Llanishen Reservoir offers a pretty stroll with a rope swing and stream for kids to enjoy.
What natural features and landmarks can I see at Cardiff's lakes?
Cardiff's lakes boast various natural and man-made features. At Roath Park Lake, you'll find the iconic Scott Memorial Lighthouse and diverse birdlife. Cosmeston Lakes Country Park is a Local Nature Reserve with rich wildlife and the reconstructed Cosmeston Medieval Village. Lisvane and Llanishen Reservoirs are nationally important wildlife sites, known for their waxcap fungi and overwintering birds. Cardiff Bay features the Senedd building and Wales Millennium Centre.
Which lakes are suitable for water sports?
Lisvane and Llanishen Reservoirs offer a range of water sports, including open-water swimming, sailing, canoeing, kayaking, and stand-up paddleboarding. Cardiff Bay also provides opportunities for boat tours, sailing, and even white-water rafting at Cardiff International White Water.
What is the best time of year to visit the lakes around Cardiff?
The lakes around Cardiff can be enjoyed year-round. Spring and summer are ideal for boating, picnics, and enjoying the lush greenery and blooming flowers. Autumn offers beautiful foliage, while winter provides peaceful, crisp walks, especially at sites like Hendre Lake Park or Forest Farm Country Park for birdwatching.
Can I take my dog to the lakes near Cardiff?
Dog policies vary by location. At Lisvane and Llanishen Reservoirs, dogs are permitted on the café balcony, car park, and Grab & Go seating area only, but not on the main paths due to the sensitivity of the waxcap fungi. Always check specific park rules before visiting with your dog.
Are there cycling routes near the lakes?
Yes, several lakes are integrated into cycling networks. The Cardiff Bay Barrage area is popular for cycling, connecting to routes like the 'Cardiff Bay Trail'. You can find more cycling options, including routes like 'Cardiff Bay to Caerphilly Castle loop', in the cycling guide around Cardiff.
Which lakes are good for birdwatching?
Cosmeston Lakes Country Park is a designated Local Nature Reserve, excellent for birdwatching with species like swans, mallards, grebes, and kingfishers. Hendre Lake Park is also a favored location for birdwatching. Forest Farm Country Park, with its mini-lakes, is a good spot for observing waterfowl, herons, and kingfishers from viewing hides.
Are there cafes or facilities available at the lakes?
Many lakes offer facilities. Roath Park Lake has a lovely café. Cosmeston Lakes Country Park includes a café and picnic areas. Lisvane and Llanishen Reservoirs feature a new two-storey visitor centre with a café, toilets, and free Wi-Fi. Cardiff Bay is surrounded by numerous restaurants and cafes.
How can I get to Roath Park Lake using public transport?
Roath Park Lake is well-served by public transport. Numerous bus routes connect the park to Cardiff city centre and surrounding areas. Check local bus schedules for the most up-to-date routes and times to plan your visit.
What is the history behind Cardiff Bay's transformation into a freshwater lake?
Cardiff Bay was transformed into a 500-acre freshwater lake by the construction of the Cardiff Bay Barrage, completed in 1999. This significant engineering project impounded freshwater from the rivers Ely and Taff, creating a permanent non-tidal water environment and playing a crucial role in the regeneration of the bay area.
Are there any hidden gem lakes around Cardiff?
While not entirely 'hidden,' Forest Farm Country Park offers a more secluded experience with its two mini-lakes, Llyn Brwyniog and Llyn-y-Gamlas, providing tranquil habitats for waterfowl and excellent birdwatching opportunities away from the busiest spots.
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