Owners of viral TikTok blue lagoon warn people to stay away

Owners of Brombil Reservoir, a popular "blue lagoon" in south Wales that gained attention on TikTok during the pandemic, have issued warnings urging people to stay away from the site. The reservoir, located near Neath Port Talbot, has become a destination for visitors drawn by its striking turquoise waters. However, increasing numbers of visitors have led to concerns over safety, environmental impact, and infrastructure strain. Brombil Reservoir, situated within a valley on Margam Mountain, is accessible via a steep 900-meter public footpath. Its depth reaches 30 meters, making it a visually stunning yet potentially dangerous location. Since it first went viral on social media, especially during the pandemic, the site has attracted large crowds, resulting in reports of traffic congestion and littering in the surrounding area. These issues have prompted the reservoir’s new owners, Leisure Estate Investments Ltd, to take measures to control access. The company acquired the site through an auction in September 2024, purchasing it for £20,000—far below its initial guide price of £75,000. Now, the owners have implemented a £2 levy per visitor as a "temporary deterrent." This charge aims to manage unauthorized visits while supporting clean-up efforts. Additionally, barriers have been installed along the dam face to prevent unsafe activity, though these have been removed by trespassers. The owners emphasize that all activities, including swimming, hiking, filming, and camping, are restricted without prior consent. Despite the restrictions, the reservoir remains a focal point for nature lovers and adventure seekers. Described as "perfect for nature enthusiasts, adventurers, filming, and those with a keen interest in ecology," the site holds ecological significance. It is a former 19th-century colliery repurposed to supply water to Port Talbot Docks. The reservoir also plays a crucial role in flood prevention, shielding downstream communities from potential disasters. However, repeated incidents of vandalism, including the destruction of iron security gates and persistent littering, have raised alarms among the management. Natural Resources Wales (NRW) oversees the regulation of such sites under the Reservoirs Act 1975. Matthew O'Brien, a representative from NRW’s reservoir safety group, stated that owners are legally obligated to maintain and manage their reservoirs safely. He noted that these regulations aim to minimize the risk of flooding and protect both people and property. The company has highlighted that compliance with these standards has grown increasingly costly, requiring substantial investments in structural surveys, engineering assessments, and waste clearance. Brombil Reservoir Ltd has expressed frustration over the lack of support from local authorities. Despite reaching out to Neath Port Talbot Council and local politicians for assistance, the company claims it has received no meaningful response. Without public-sector backing or a formal partnership agreement, the owners warn they may be forced to decommission the reservoir. This outcome would mean the loss of a unique natural feature and a critical flood defense system. As the situation continues to evolve, the owners remain committed to their long-term vision of creating a publicly accessible space that balances recreational value with environmental responsibility. They urge visitors to respect the site’s boundaries and consider the broader implications of their actions on the local ecosystem and infrastructure.