Water and Sewerage Authority officials have issued a warning after blue green algae was discovered in the Clypse Reservoir.
Although algal blooms aren’t always harmful, say some can be toxic and visitors to the reservoir are advised to avoid contact with the water.
Pet owners are also being urged not to allow their animals to drink from it.
Island's first rapid EV charger being installed
Once operational, the site will retain its existing charger, increasing overall capacity to four charging bays
Mooir Vannin could be first of many
Dr Alex Allinson, who is retiring as Ramsey MHK at this year's general election, gave evidence to the final hearing by the independent panel.
'Significant investment or redevelopment' needed at Ramsey District Cottage Hospital
Manx Care is 'planning a sustainable long-term solution'
Braddan Commissioners open expressions of interest for TT camping at Roundhouse
Local authority wants to provide family friendly accommodation