Cold water shock can kill

California State Parks

Many drownings in Lake Tahoe and other Sierra lakes and waterways are attributed to cold water shock and life jackets are the best way to prevent this.

When a person falls or jumps into cold, alpine water, the first instinct to gasp in shock – cold water shock. This initial reaction sets off a chain reaction that often leads to drowning. Life jackets give people a few minutes to control their breathing, calm down and self-rescue.

Before going out, check the weather, including the wind. Check Lake Tahoe conditions at tahoe.ucdavis.edu/lake-conditions.


Water safety tips:

  • Children younger than 13 must wear life jackets by law while on a vessel in Nevada and California. That includes standup paddleboards, kayaks, personal watercraft and other craft.
  • Everyone should wear a life jacket and a SUP leash. If you fall in, it will keep your head above water and keep you insulated.
  • Drinking and boating is the same crime as drinking and driving.
  • Paddling is boating and subject to the same rules and safety guidelines.
  • Taking a boating education course is the best way to learn boat safety. Online boating courses are offered free at boatus.org/nevada or boatus.org/california.
  • All boaters in California aged 50 and younger are required to have a California Boater Card available at californiaboatercard.com.
  • Pay attention to changing wind and weather conditions.
  • Avoid cold water shock and hypothermia — enter water slowly and control your breathing.
  • Always wear bright colors, carry bright paddles along with a whistle and flashlight.
  • Notify someone of your departure location and time and when you plan to return.
  • Stay close to shore when paddling and swimming to avoid boating traffic.