It may be nearing the end of summer, but it’s never too late to remind yourself and your children about water safety. Even for children who can swim, there are risks.

The statistics are sobering. Drowning is the second-leading cause of unintentional injury-related death among children ages 1 to 14, behind vehicle crashes, according to the U.S. Centers for Disease Control and Prevention. It’s actually the leading cause of injury death for children ages 1 to 4. Of all drowning victims, about 20 percent per year are children under age 15. And African-American children drown nearly three times more often than white children—USA Swimming estimates about 70 percent of African-American children don’t know how to swim.

After learning to swim, perhaps the most important safety tip is teaching children never to swim alone. For more tips, read on.

Home swimming pools are the most common place for a child under age 5 to drown. Fences, locking gates, removable or locking ladders, and pool alarms are important for at-home pool safety. Always watch children and give them your full attention. If a child can’t swim well—or at all—be sure to keep them at arm’s length and use a life jacket. Children should be taught never to play or swim near drains.

At the beach or lake, or on a boat, staying alert is critical. Watch children at all times—even if they know how to swim. And always keep your eye on the weather, waves, and currents. Make sure kids understand to swim only in designated areas. On a boat or during water sports, children should always wear U.S. Coast Guard approved life jackets. Teach your children how to swim and float in a life jacket, so they know what it feels like. And educate your child about swimming in open water, including things like currents, waves, undertow, and changing weather.

One final tip: Whether at a pool, at the beach, or on a boat, if a child is missing, always check the water first.