My takeaway - plenty of people there but ride lines oddly low. We left 2:45ish and the walkway for Summit Plummet still looked only down a landing or two. I’m more used to rides like that getting consistently long lines for most of the day.
The lazy river thing (having to be in a tube) is sort of silly, to be honest. Not sure how practical that will be in the long run. TBD of course. Tubes bump into each other just like people do.
Overall it was sort of like a Disney resort pool to me. If you are really sensitive to distancing and masks, it’s probably not your place to go right now. If you have some tolerance for outdoor no mask/less than 6 feet situations, you won’t think twice about it.
Like with the parks and anywhere, things could change and crowds could increase, especially as the temps pick up... so YMMV!