You can’t live long without water so make sure you either secure clean sources of drinking water a lifestraw on you BAG. This little $20 Dollar devise allow you to drink water directly from contaminated sources and will filter up to 1000 liters of water. It removes 99.9999% of waterborne bacteria, including E-Coli and also Parasites.
So next time you travel or go up to the mountain grab one no this. it might save your life tomorrow.