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.
You perfectly described a water park in my home town, although mine closed down in the 1990s. It had a “silver bullet” slide, a bunch of conventional slides and a tube slide, a lazy river, a wave pool, a pretty decent arcade and a go-kart track, and probably a bunch of other stuff I don’t remember from spending big chunks of my childhood summers there. Birthday parties and school trips, too.
After it closed down, some of the slides were moved to a golf course across town that wanted to expand, but it wasn’t as good and it was way too far to go by bus. The original park is the loading dock for a Home Depot now.