Wrexham's biggest leisure centre is to close, if council plans are approved.
Plas Madoc's "tropical lagoon" pool would close under the proposals
A Wrexham Council report says Plas Madoc Leisure Centre - in one of the borough's most deprived estates - is near the end of its "beneficial life".
Local councillor Paul Blackwell said a complete closure would mean the health and well-being of Plas Madoc residents would go "out of the window".
Wrexham Council said any savings would go towards another facility in the area, and others across the area.
A report to a council scrutiny committee estimates it could cost between £5m and £8.5m to replace or refurbish the centre.
If the council votes to approve the recommendations, the leisure centre would be "phased out" during the next five years.
A council spokeswoman added: "It's past its useful life.
"Any savings will go towards some sort of facility in the Plas Madoc area and towards running others in the borough."
Mr Blackwell said he hoped some elements of the leisure centre would remain.
He added: "I have been told it's the pool that is costing a lot of money.
"I don't want anything to disappear, but if something has to go, I would call for the existing leisure pool to be modified and turned into more of a dedicated swimming pool.
"But if the council wants to close the whole centre, I would be totally opposed to that, and so would the local community. They would really have a fight on their hands.
"The whole health and well-being of the residents in Plas Madoc would go out of the window."
The proposals will go before the council's executive board next month.