What is the 120 rule for water?
What is the 120 rule for water? A good rule of thumb to follow is the 120° rule. This means you should wear a wetsuit or dry suit whenever the sum of the air temperature and water temperature is equal to or less than 120°F. Warm weather does not cancel out the danger of cold water, wearing lighter clothing on a warm day increases risk.
What is the coldest place on the earth?
At a bone-chilling minus 144 degrees Fahrenheit (minus 98 degrees Celsius), NASA says the East Antarctica Plateau in Antarctica is the coldest place on Earth.
Is it harder to swim without a wetsuit?
If you use a slow stroke rate without a wetsuit you will start to sink between strokes if you don't have great balance or buoyancy. With a wetsuit there is a lot more leniencies to swim with a slower stroke rate and keep better forward momentum.