When you take your kids on vacation, they’ll probably want to go to a popular theme park.

But theme parks have gotten more expensive these days and the more you spend, the more you expect, which could set you up for disappointment.

In a study by tourism site HawaiianIslands.com, some of most overrated tourist spots are theme parks.

Volcano Bay Water Park at Universal Studios in Orlando ended up the most overrated attraction in the U.S., according to the HawaiianIslands research of more than 17,000 Tripadvisor reviews. Some 39 reviews out of every 1,000 expressed disappointment by their experience and labeled the park “overrated.”