Shropshire lake popular for swimming and water activities closes due to blue-green algae

Alderford Lake in Whitchurch has closed until further notice due to blue-green algae.

The tourist attraction posted on Facebook on Monday (July 6) to announce the closure and said it is continually retesting the water and taking proactive measures to improve the water quality.

The attraction is also working closely with Shropshire Council to ensure that the appropriate guidance is being followed.

The lake will reopen once it is safe.

Alderford Lake features a massive 120-person Aquapark obstacle course with a new swing for 2026 that is very popular.

At the Aquapark there are slides and climbing walls, balance beams and wobble bridges, trampolines and jumping platforms.

The site also offers paddleboarding, kayaking, open-water swimming, a lakeside café, walking trails, and other family activities.

The lake is currently closed for water activities, however, the site’s Escape Islands remains open and the café is also open as normal for food, drinks and a visit.

Alderford Lake said in a statement: “Following the results of our latest water testing, the lake is now closed until further notice due to the presence of blue-green algae (cyanobacteria). We understand this news will be disappointing, particularly with the warm weather forecast.

“Trust us, nobody is more disappointed than us but of course the safety of our visitors, staff and animals is at the forefront of every decision we make. We are continually retesting the water and taking proactive measures to improve the water quality, while working closely with Shropshire Council to ensure we are following the appropriate guidance.

“The lake will only reopen once it is safe to do so. We sincerely appreciate your patience and understanding while we manage this natural issue. We have contacted everyone with a booking for this week. If you were expecting to hear from us and have not yet been contacted, please get in touch with our team.”

It added: “Visitors are still welcome to walk around the lake. However, due to the presence of blue-green algae, anyone wishing to do so will be required to sign a disclaimer acknowledging the potential risks.

“This includes agreeing to keep all dogs on a lead at all times, ensuring children remain well away from the water's edge, and preventing both people and animals from entering or coming into contact with the lake water.

“We appreciate that this is not the news many of you were hoping for, but we hope you understand that these measures have been taken solely in the interests of public safety. We will continue to monitor the situation closely, carry out regular water testing and provide further updates as soon as we are able. Thank you for your continued patience and support.”

Blue-green algae is a type of bacteria called cyanobacteria. Cyanobacteria can increase greatly in numbers and form visible ‘blooms’ which can lead to poor water quality and the production of harmful toxins (from certain strains of cyanobacteria).

Blue-green algae can harm people, producing rashes after skin contact and illnesses if swallowed, or can potentially kill wild animals, livestock and pets if ingested.