It serves as a reminder to make sure you drink enough water through the day , especially if you are unaccustomed to the heat and that much walking ! The rides are WAY over the top loud too imo .

Question: Why does one need to stay properly hydrated in this activity ?
Answer: Hydration is key to the fact there is a charity event taking place .None of the above choices .Hydration is key to the fact there is water to be donated .Hydration is key to the fact there is a lot of physical activity .