There used to be a water park in my hometown that had a bunch of slides and a wave pool. I used to go there all the time as a kid, and even went there as a senior on a trip. I went to birthday parties there, sometimes.
It closed in 2020 and never reopened because they had apparently been avoiding paying bills for years. It wasn’t just the pandemic. It was visible from the freeway, so I watched it slowly being demolished over the next couple years any time I passed by.
I haven’t found a water park that really compared to it yet. Most are either too small or part of a larger theme park, which is fine. It just seemed like the fact that it exclusively was a water park allowed it to focus more on the atmosphere and types of slides it had.
There used to be a very janky waterslides on a hilltop that closed down. The place was notorious for giving kids scrapes and bruises and other injuries for years, my parents were surprised it hadn’t closed earlier.