EditorThe reservoir was bought in February for £15,000 and put back up for sale an hour later for £30,000.
A TikTok video from an account highlighting UK hidden gems received more than one million views on a video featuring the reservoir in 2022.
During lockdown, the beauty spot became so popular that police, councillors and local residents issued warnings over crowds travelling as far as 200 miles for a selfie.
The reservoir is home to an abundance of wildlife and has views of the Gower, surrounding forest, and woodland. There are also an array of undisturbed footpaths leading between Neath and Bridgend – perfect for those who enjoy a countryside walk.
The deep colliery on Margam Mountain, which was flooded in the 19th century, is now up for sale once again – listed by SDL Property Auctions, featuring a one-acre reservoir and two acres of countryside.
Auctioneers had said visitors call it a blue lagoon, suggesting the property could host an outdoor activities business if given planning permission.
Speaking about the reservoir auctioneer Andrew Parker said:
“With its intensely turquoise water, set amid the rural greenery of Margam Mountain, Brombil Reservoir is a truly stunning man-made lake.
“A reservoir certainly isn’t for everyone, but we are excited to see what happens on the day of the auction and what imaginative plans a new owner might have for this hidden Welsh gem.
“Whether you’re looking to invest in a scenic retreat or develop a unique outdoor business, Brombil Reservoir offers a rare opportunity to own a piece of Wales’ natural splendor.”
The guide price is at between £20,000 and £25,000.
Viewings entail a a 900m (2,953ft) walk down a public footpath, the only access to the site’s blue waters, which are more than 30m (100 feet) deep.
It also comes with liabilities, including having a structural surveyor’s report to be done ever ten years because the reservoir sits above residential properties, according to a previous seller Watts & Morgan estate agents.
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