No, MGM Resorts (including the MGM Grand Pool Complex and The Signature at MGM Grand) strictly prohibits guests from bringing outside alcohol, food, or beverages into the pool areas. According to the 2026 guest policies, all outside glass items, coolers, and personal drinks are forbidden and may be confiscated at the entrance. The resort maintains this policy to ensure safety (particularly regarding broken glass) and to encourage the use of their internal high-fidelity poolside cocktail and dining services. While you are generally allowed to bring a personal, non-glass water bottle to stay hydrated, all other refreshments must be purchased from the poolside bars or cafes. For guests who have reserved cabanas or daybeds, personal bar service is often included as part of the rental, providing a high-fidelity, luxury experience that complies with the resort's safety and commercial regulations.