With record heat on the way, pools around the valley are sure to be packed this week.
With more people diving into pools comes an increase in the risk of drowning.
And even if a child comes out of the water walking and talking, there is still a chance that they could drown hours later if they were struggling in the water at any time.
It is called dry drowning or secondary drowning. It is caused by a lack of oxygen in the brain or water in the lungs.
If your child experiences a near drowning or is underwater for a long period, you should keep an eye on them for at least 8 hours.
Symptoms include choking, coughing, trouble breathing and passing out.
If any of these symptoms occur, take the child to see a doctor immediately.