I think Bally’s is the only pool on the Strip with a deep end. I actually enjoy that pool, as well as Paris. I’ve never been to Flamingos pool as many trips as I’ve made. I suppose it’s because even though you can use to pool as Bally’s guest, I just didn’t feel like walking over. You mentioned Zion earlier. I’d recommend a tour group that does both Zion & Bryce National park. It’s a long day, but we’ll worth it. https://gc.tours/reservations This company is solid, as I’ve used them in the past, if you’re traveling by yourself you’ll have to call, as you can’t book a solo person online.