Using the world-famous Mandalay Bay Beach in Las Vegas requires you to be a registered guest at Mandalay Bay, Delano, or Four Seasons Las Vegas. In 2026, you access the 11-acre pool complex by scanning your digital room key via the hotel app or using a physical key card at the main entrance. The complex features a massive wave pool, a lazy river, and three heated pools. To secure a prime spot, it is highly recommended to arrive right at opening (usually 9:00 AM), as lounge chairs are "first-come, first-served." If you want a guaranteed spot, you can rent a cabana or a daybed in advance, which includes personalized service and shaded seating. Non-guests can occasionally gain access by renting a high-value cabana or by attending a scheduled "Beach Concert" during the summer season. Remember to bring your own sunscreen, as prices at the poolside shop are significantly marked up. The "Lazy River" is a fan favorite, but note that inner tubes are not provided for free; you must either bring your own (under a certain size) or purchase one at the complex.