Water walking ball @ Coffee Castle. As the name suggested, water ball is a ball for people get inside and walking inside the ball on the water. Get in touch with water without getting wet. And water ball would be perfect way for your kids to enjoy at our resort. Inflatable water ball is a huge inflatable ball with a zipper for player to get inside. And player walks inside the ball on the water, which likes a walking water ball. With water ball, people get to walk on the water without getting wet and achieve the purpose of exercise, as well.