A rip current is a strong, narrow channel of water that flows away from the shore. It forms when waves break over sandbars or other underwater features, creating a powerful current that can pull swimmers out to deeper water. Rip currents can be dangerous, especially for those who are not strong swimmers. To identify a rip current, look for differences in water color, texture, or wave patterns. Areas where the water appears choppy or has foam can indicate a rip current. If caught in one, it is important to stay calm and swim parallel to the shore until free from the current, rather than fighting against it.