If you are only planning on doing 1 waterpark and NOT doing DQ or golfing, the WP&M option is NOT worth the extra $$. It is less expensive to just purchase the one day ticket (because you can also find discounted tickets) rather than purchase the add on. However, if both parks are open and you are planning to do both parks, or are also planning on DQ or golf, it is less expensive to buy the WP&M option.