"We want you all to be safe and your loved ones to have you at home. Please head to one of our swimming facilities or one of the beaches instead."
It also thanked police and rescue teams who had assisted with searches over the past week.
Ahimate Reserve in Awapuni is a 22 hectare riverside park, home to a popular beach, a dog agility park and fenced enclosure, mountain bike tracks and a natural playground.
It has been previously described in a council pamphlet as "one of Palmy's best swim spots".
However the council website now lists it as a "dangerous spot to swim", saying they no longer recommend swimming there as of January 2022.
Police confirmed they responded to a water-related incident yesterday in the Manawatū River after receiving reports from the public just after 5.30pm.
Later yesterday evening, police confirmed the bodies of two men who were swimming in the river near Awapuni had been recovered.
Searchers recovered the men's bodies at a nearby location on the Manawatū River a short time after reports of their going missing. Police are making inquiries in relation to the deaths on behalf of the coroner.
It was a terrible day for water incidents nationwide, with two people airlifted from Auckland's west coast after getting into trouble in the water after 6pm yesterday.
Yesterday's incident in the Manawatū River comes after an 11-year-old girl's body was recovered from the same area of the river on New Year's Eve.
The search for the 27-year-old woman she was swimming with on December 29 had been continuing until yesterday, but shortly after 10pm police reported they believed to have recovered the body of the woman.
While formal identification has yet to take place, police said they believe the body to be the missing 27-year-old woman - Myanmar refugee Mu Mu.