Undertow is a phenomenon that occurs in bodies of water, including rivers, when waves push water up onto the shore and then that water flows back out to sea, creating a strong current beneath the surface of the water.
Fast-moving currents, waves and rapids, even in shallow water. Hazards, such as dams, underwater obstacles, or rocks and debris. Vegetation, animals and fish. Drop-offs that can unexpectedly change water depth.
Dispelling the Myth of the RipRip currents do not pull people under the water; they pull people away from shore. The rip current is typically the strongest about a foot off of the bottom, which can cause your feet to be knocked out from under you making it feel like something under the water was pulling you.
Stay out of the water ifCloudy water can be a warning that there are more germs in the water than normal. Discolored or smelly water could mean there is a harmful algal bloom (HAB) in the water.
Lake Drownings are Especially CommonIt is easier to drown in freshwater than in saltwater. Lake waters are dark and murky – it harder to spot someone who is drowning. Ice on lakes can be thinner than expected, causing someone to fall through and drown.
Even on hot spring days, lakes, ponds, and rivers are still cold and are dangerous for swimmers. Hypothermia can occur quickly in very cold water. Summer – Water that is warm on the surface, may be much colder below. Use caution when swimming and always supervise young children playing in or near the water.