Due to an outbreak of a potentially toxic blue-green algal bloom, the lake at Rotokare Reserve is closed to all users until further notice.
The grounds at Lake Rotokare Reserve remain open for visitors.
Contact with the naturally occurring algae may cause severe irritation of the skin, eyes and throat and bring on asthma conditions.
Any visitors to the reserve showing these symptoms should consult their doctor immediately or they can contact the Taranaki District Health Board Health Protection Unit on 06 753 7798 for further information.
Visitors to the lake have been instructed not to collect or eat fish and plant life or come into contact with the water.
The South Taranaki District Council properties and facilities manager John Sargeant says the lake will remain closed until cleared by the Taranaki District Health Board.
Alternatives for water skiing and lake activities are suggested on Lake Rotorangi at Glenn Nui, Tangahoe or Patea Dam Camp site off Ball Road.