A newly re-opened tourist attraction in the borough is under investigation by the council after a number of swimmers became unwell.
On Friday visitors to Wet ‘N Wild in North Shields began to feel unwell, with some suffering coughing fits and vomiting.
Bosses at the attraction, which has just undergone a £1.1m refurbishment, were forced to close for 24 hours, just five days after opening, while they worked to solve a problem with the air quality.
The park is now back in operation but North Tyneside Council has said it is investigating what went wrong.
A council spokesperson said: “An officer visited Wet ‘N Wild and internal air temperatures, air quality and pool water quality at the facility were all checked and found to be satisfactory.
“The investigation into the events over the weekend is ongoing so we cannot comment further.”
Concerned parents took to the attraction’s Facebook page to voice their concerns after the incident.
Sally-Ann Wilson wrote: “My son came home very poorly from wet and wild – coughing and with pains and tightness in his chest – due to the chemicals in water.”
A spokesman for Wet ‘N Wild said: “We closed one hour early as a result of technical problems we were experiencing.
“For the comfort of our staff and customers, we took the decision not to open on Saturday, August 9, to allow us to check all pool water and humidity levels.
“Following a thorough investigation we re-opened on Sunday, August 10.
“We apologise for any adverse symptoms or discomfort that may have been experienced by our customers.”