Yes, Kings Island offers free water to all guests through several convenient methods. Throughout the park, you can find dedicated water bottle refill stations and traditional drinking fountains, which are typically located near major restroom blocks. Many of the "Coca-Cola Refresh" kiosks also feature water dispensers or bottle fillers around the side. While the park heavily promotes its paid All-Day Drink Plans for soda, any food or beverage location with a fountain soda machine will provide a small cup of ice water for free upon request. In 2026, guests are permitted to bring their own empty, refillable metal or plastic water bottles through security to use at these stations. This is a highly recommended "pro-tip" for staying hydrated during hot summer days, as it allows you to bypass long lines at the soda stations. While the park is effectively cashless for most transactions, these free hydration options remain a standard hospitality feature for all ticket and season pass holders visiting the Mason, Ohio destination.