Mandalay Bay Beach

One of Las Vegas' most family-friendly pools, this 11-acre playground features a 1.6-million-gallon wave pool, a three-mph lazy river, four swimming pools, jogging track, and 2,700 tons of real sand. The 100 cabanas are the least of it, with hundreds of day beds for rent, with service from the walk-up Bikini Bar.

Summer months feature beach concerts, while the climate-controlled glass-fronted Beachside Casino features the Beach Bar & Grill on the ground level, with a second-floor casino (blackjack, roulette, and craps), plus a third level with five Sun Villas that accommodate up to 16 guests and feature access to a private third-level pool.