If you were dreaming of visiting water park, it can mean you have been under the weather and require some amusement. Why did you dream of a water park and not another type of park? It can be because a water park allows you to get contact with water. This may help to cool you. This point only applies if your climate now is hot and not in winter. Dreams are stimulated by the season of the year and its unlikely to dream of going to a water park when it is winter.