Lakes around Thornbury, South Gloucestershire, offer diverse outdoor experiences, from historical man-made lakes to extensive water parks. This region provides opportunities for watersports, fishing, and nature observation. The landscape features a mix of open water, woodlands, and nature reserves, catering to various recreational interests.
Last updated: May 17, 2026
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**PLEASE NOTE** Entrance to the Tortworth Lake / Estate grounds is ONLY available on the FIRST SUNDAY of each month from February to the end of October!! (I wish I'd known that before this mess of a hike. In January. On a Monday 🙈🤣). Opening times vary depending on the month, but it is only open on the first Sunday of each month. See photo here for the opening times (and a screenshot from the website). If you DO head here on a different day, the woodland nearby IS really stunning, so it is still worth a walk 🥰✨️
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Visiting Lydney Harbour offers a unique perspective of the Severn Estuary, showcasing its 19th-century dock and remnants of the area's industrial past. The site features scenic riverside walks, sculptures, and is perfect for birdwatching and enjoying stunning sunsets.
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Take some time to walk up the hill & around the top. It's an area of heathland called "The Tump"! Lots of opportunities to see wildlife, especially birds. It's usually quiet up here, and really pretty. I've added a screenshot where I've circled the pathway that goes around the summit - You can walk up here and then decend down by the lake, for example. Or, you can walk up, complete the loop & head back down! Either way, I'd say it's worth coming up here
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A picturesque fishing lake. A good place to stop for a break.
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Bitterwell Lake is a man-made lake that once belonged to the Coalpit Heath Colliery Company. The lake was used to soak pit props for the mine until the closure of the mine. In 1930, the lake was aquired by the Westerleigh Parish Council who transformed it into a place to fishing, swimming, and boating. You can find more information, here: https://bitterwelllake.co.uk/
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Around Thornbury, South Gloucestershire, you'll discover a variety of lakes, from historical man-made bodies of water like Bitterwell Lake, which has an industrial past, to natural reserves and extensive water parks. These areas offer diverse experiences, including watersports, fishing, and nature observation.
Yes, several lakes and natural areas around Thornbury are suitable for families. Bitterwell Lake is a public space for fishing, swimming, and boating. Lydney Harbour offers scenic riverside walks and birdwatching, while The Tump, Three Brooks Local Nature Reserve provides quiet trails for observing wildlife.
The region boasts several historical sites connected to its waterways. Lydney Harbour features 19th-century docks and remnants of the area's industrial past. Bitterwell Lake was originally used to soak pit props for the Coalpit Heath Colliery Company before becoming a public recreational spot. Additionally, Tortworth Lake and Estate House is a historical site with a beautiful forest setting, though access is limited to the first Sunday of each month from February to October.
For open water swimming, scuba diving, and paddleboarding, The Lake at Cromhall Quarry is an excellent choice. It's known for its clear, limestone-filtered waters and offers facilities like changing rooms and water safety provisions. The Cotswold Water Park, though about 27 miles away, also provides extensive opportunities for various watersports.
Yes, the area is great for birdwatching. Lydney Harbour is perfect for observing various bird species, especially during sunsets. The Tump, Three Brooks Local Nature Reserve is also a quiet and scenic spot where you can often see a variety of birds.
Beyond watersports, the region offers numerous outdoor activities. You can explore various hiking trails around Thornbury, enjoy cycling routes, or try gravel biking. Many of these routes pass by scenic viewpoints and natural features, complementing your lake visits.
Visitors appreciate the diverse experiences offered by the lakes around Thornbury. Many enjoy the historical significance of sites like Lydney Harbour, the tranquil fishing opportunities at Bitterwell Lake, and the chance to observe wildlife in quiet settings such as The Tump, Three Brooks Local Nature Reserve. The blend of natural beauty and recreational options is a major draw.
While the main highlights are popular, for a potentially less crowded experience, consider exploring the broader Cotswold Water Park. With over 150 lakes, many are designated nature reserves offering tranquil environments for walking, cycling, and birdwatching away from the main activity hubs. For fishing, the private lakes at Thornbury Holiday Park in Devon are described as a 'hidden gem' for their peaceful and uncrowded atmosphere, though this is a different region.
Access to Tortworth Lake and Estate House is quite restricted. It is only open on the first Sunday of each month, from February to the end of October. Opening times vary by month, so it's advisable to check specific details before planning your visit.
Yes, there are other locations named Thornbury with distinct lakeside experiences. Thornbury, Ontario, Canada, is on Georgian Bay and has the scenic Mill Pond. Thornbury Holiday Park in Devon, UK, features private, well-stocked fishing lakes. However, specific notable lakes within Thornbury, Victoria, Australia, are not prominently featured, though the wider Melbourne area has many waterways.
You can find a variety of trails suitable for walking near the lakes. The Tump, Three Brooks Local Nature Reserve offers a trail with a hill and heathland, perfect for a quiet stroll and wildlife spotting. Lydney Harbour provides scenic riverside walks. For more extensive options, explore the various hiking routes around Thornbury, which often incorporate lake views and natural landscapes.


Still not found your perfect lake around Thornbury? Check out the guides of these regions to see even more beautiful places.