Best lakes around Llanishen include significant natural resources like the Lisvane and Llanishen Reservoirs. This area is recognized for its ecological value, featuring two Sites of Special Scientific Interest due to rare fungi and importance for overwintering birds. The region offers a blend of historical sites, such as the Victorian-era Llanishen Reservoir, and modern recreational opportunities. Visitors can explore both urban and natural lake environments.
Last updated: May 2, 2026
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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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Roath Park Lake has stunning vistas and tree-lined pathways. Lots of birds relax on the shores.
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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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lovely part of Cardiff, particularly on a sunny day. good spot for a stroll but very busy with families and people walking so not very suited for cycling
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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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Lisvane and Llanishen Reservoirs forms a vital part of the green and blue infrastructure of Cardiff. The mix of grassland, woodland, scrub and waterside habitats offers opportunities for all kinds of wildlife and nature. There are two Sites of Special Scientific Interest (SSSI) and much of the grassland and woodland outside of the SSSIs is designated as a Site of Importance for Nature Conservation (SINC). 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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Enjoy a pretty stroll through the woodland surrounding Llanishen Reservoir. 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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Roath Park is one of Cardiff's most loved parks, it was recently awarded the prestigious Green Flag award to recognise its high quality and its importance to Cardiff. 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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The Lisvane and Llanishen Reservoirs offer a variety of activities. You can enjoy open-water swimming, canoeing, kayaking, stand-up paddleboarding (SUP), and sailing on Llanishen Reservoir. There are also 5km of circular paths for walking, a woodland Story trail, and bird hides for nature observation. Equipment hire and supervised swimming sessions are available on-site.
Yes, the Lisvane and Llanishen Reservoirs are family-friendly. They offer a woodland Story trail, taster sessions for watersports during school holidays, and a visitor centre with a cafe. The site also features well-maintained paths for strolling, and you can find a rope swing and stream to discover in Rhydypenau Woods and Llanishen Reservoir.
Dogs are permitted on the café balcony, in the car park, and in the Grab & Go seating area at the Lisvane and Llanishen Reservoirs. However, they are not allowed on the paths or anywhere else on the site due to the presence of rare waxcap fungi, which are sensitive to changes in habitat, including those caused by dog urine.
The Lisvane and Llanishen Reservoirs are ecologically significant, recognized as two Sites of Special Scientific Interest (SSSI). You can spot rare waxcap fungi, diverse wildlife including grass snakes, otters, bats, toads, and frogs. It's also an important site for overwintering birds, with bird islands installed on Lisvane Reservoir for nesting and roosting.
Yes, the Lisvane and Llanishen Reservoirs offer accessible facilities. There is a fully accessible Visitor Centre with toilets, changing rooms with hot showers, and free Wi-Fi. The site also features multiple pedestrian entrances and is generally considered to have accessible facilities, though specific path accessibility may vary. Assistance dogs are welcome throughout the site.
Around Llanishen, you can enjoy 5km of circular paths at the Lisvane and Llanishen Reservoirs, including a woodland Story trail. Another popular option is the trail through Rhydypenau Woods and Llanishen Reservoir, which offers well-maintained dirt paths for a pleasant stroll.
Yes, the Lisvane and Llanishen Reservoirs feature a brand-new two-storey visitor centre with a cafe offering seasonal produce and Welsh delicacies. It also includes meeting rooms, an activity hub, toilets, changing rooms, limited parking, bike racks, and free Wi-Fi. For another option, Roath Park Lake also has a lovely little café.
Llanishen Reservoir, part of the Lisvane and Llanishen Reservoirs, is a Victorian-era reservoir completed in 1886. It was originally built as part of the Taff Fawr scheme to supply water to Cardiff, and many of its original features remain intact. Additionally, Cardiff Bay Barrage is a significant man-made structure completed in 1999, transforming the bay into a freshwater lake.
The Lisvane and Llanishen Reservoirs officially reopened in the summer of 2023 after a major restoration, making it a great time to visit. The area is significant for overwintering birds, suggesting autumn and winter can be good for birdwatching. For watersports and general outdoor enjoyment, the warmer months are ideal. The site is beautiful year-round, as noted for Cardiff Bay.
The Lisvane and Llanishen Reservoirs have multiple pedestrian entrances. Limited parking is available on-site, along with bike racks. For public transport options, it's advisable to check local bus routes serving the Llanishen area.
Beyond the reservoirs, you can visit Cardiff Bay Barrage, a significant man-made structure creating a large freshwater lake. Another popular spot is Roath Park Lake and the Scott Memorial Lighthouse, a well-loved park lake perfect for walking and bird observation.
The area around Llanishen offers various outdoor activities. For running, you can find routes like the 'Llanishen Reservoir loop' which is a moderate 5 km trail. If you enjoy cycling, there are numerous road cycling routes, such as the 'Ty Coch Campsite loop' which is an easy 37 km ride. Gravel biking options are also available, including the 'Blackweir Bridge and Weir – Coed Tranch-yr-Hebog Quarry loop'. You can explore more routes in the Running Trails around Llanishen, Road Cycling Routes around Llanishen, and Gravel biking around Llanishen guides.


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