Bringing water along when hiking should not be an argument and neither is it an option.
The importance of drinking water cannot be overemphasized; the body needs water to function properly well. Moreover, studies establish that that it is imperative to drink at least 15 cups of water (about 3.7 liters) a day because staying hydrated every time is the key to a healthy lifestyle.
However, when hiking you cannot stick to the normal volume of water intake per day because, your body loses too much fluid that must be refuel and refueling it demands taking along enough water.