Some family recently stayed at Mandalay Bay, so we used the opportunity to take full advantage of the pool. The wave pool and lazy river are awesome!!! You can buy (or rent?) intertubes, or save money and bring your own.
We went on a Sunday, and even at 1pm, there were still chairs in front of the wave pool. I didn't think it was too crowded (not compared to Ditch Fridays!). The drinks are pricey ($14 for a mojito I think), but its the Strip and to be expected. We ended up striking up a conversation with some Canadians sitting in the chairs next to us, and ended up taking turns buying drinks. Overall, it was a nice break from the pool parties and we had a great time!