Corby swimming pool is hosting Leicester County Swimming Championships on Saturday, March 1, and Sunday, March 2.
On Saturday, there will be no public swimming or supervised diving available from 2pm but swimming lessons will take place as normal.
On Sunday, there will be no public swimming or supervised diving from 1.30pm.
A spokesman for Corby Council said: “All other facilities within Corby East Midlands International Pool will be open as usual. We apologise for any inconvenience this may cause.”