Work is now taking place to improve Marine Lake. Our appointed contractor E J McGrath is now on site carrying out the work. More information can be found in our news release Work starts to further improve Weston's Marine Lake.
Marine Lake is currently closed to allow construction and refurbishment work to take place.
Marine Lake provides a free all-year outdoor swimming and non-powered watersports destination on Weston-super-Mare’s seafront.
It occupies a small cove near Knightstone Island towards the north of Weston Bay.
The Severn Estuary has one of the highest tidal ranges in the world, so the water goes a long way out at low tide. Marine Lake has water at any time-of-day thanks to a retaining wall known as ‘Knightstone Causeway’. The causeway contains sluice gates to periodically filter the lake. Marine Lake's water is replenished regularly when the tides are high enough to overtop the causeway.
It’s used daily by different groups of all ages for recreation including
Madeira Gardens, above the lake, also provide welcome shade on a hot day, with lovely views across the estuary.
Marine Lake is an important part of our national seaside heritage. The lake opened in 1929, so is nearly 100 years old. It was a very popular visitor attraction and the recreation pool is largest of its kind in the country.
Our vision is to further enhance Marine Lake by developing year-round facilities to encourage food and drink and leisure activities. We hope to tap into the trend for outdoor swimming, attracting residents and visitors alike.
The tidal lake temporarily closed in February and March 2024 to allow the first phase of improvement work to take place.
Work included further dredging to remove built-up silt at the edge of the lake. This was carried out by a specialist contractor. Due to natural flow this is a regular requirement, and this work focused on the edge of the lake as this is an area popular with families and children.
Plans for the next stage of this project were created by lead design architect company We Made That.
The work being carried out includes:
You can find out more about the plans including detailed drawings on our planning portal. The planning application reference is 25/P/0855/R3. The application was approved in September 2025.
The lake is managed by our Seafronts team. The Weston Marine Lake Mudlarks is a volunteer group with an interest in the lake. They work with us to agree caretaking and events for the lake, including litter picking and fundraising.
In May 2024, we announced that we had appointed architecture practice We Made That to design improvements to Marine Lake. During the summer, they delivered a programme to get people involved in that process.
That work, which included the ‘Grove Park Gathering’ public engagement event, has helped to shape proposals.
More information was contained within a planning application, which was submitted in May 2025. People were given opportunity to have their say on the planning application. The application was approved in September 2025.
This project has been made possible thanks to the council’s successful bid for £20 million from the UK government.
This is part of North Somerset Council’s ambitious placemaking vision for Weston.