Definition of rappel for English Language Learners : to move down a steep cliff, rock, etc., by pushing your feet against its surface and sliding down a rope RAPPEL Defined for Kids
How much water you need to drink to get the most benefits depends on your diet, exercise routine, health and weather. You can start by aiming for the basic recommended amount for adults, which is 8 to 12 cups a day, according to Clemson Cooperative Extension, and making adjustments as needed.
Nobody knows for sure and different people have different views. Experts say that you should drink at least eight glasses of water every day; a glass of water is about 8 ounces US or about .236 milliliters. That estimate assumes that your environment is normally cool, you are about 150 pounds or about 68 kilograms, and exercise in some form, about 20 minutes a day. Recent studies have revealed that there is no set requirement of water per day.