Funny we were there in Aug last year and while I did not walk the whole pool there seemed to be a qualitative difference between the shallow beachy area and the other section near the slide. It definitely seemed more like Schmeck talked about, a pool with some sand in it that had accumulated in the “calm areas”, far different from the walk in the soft sand everywhere feel of the shallower “zero entry” section. I did not do the lazy rive part (only the boys) and we were there relatively late in the day so maybe that makes a difference, or maybe my expectation were too high for what was expecting and it just seemed to me to be a standard pool with some patches of sand. Sounds like the OP is playing it safe either way. We are doing either BCV or BWV in June so if it is BCV again is will have to try it early in the morning to see if my perceptions are different (our DS9 has issues with sand, although not acute, and he had no problem although he had a life vest on so he could easily keep his feet of the bottom in the sandy areas.
bookwormde