1. Rooftop Fiesta at Beer Park Hornitos tequila hosts this Strip party with Mexican-inspired bar bites (including chile verde nachos and a Tex-Mex-style hot dog), a mariachi band, piñatas and—naturally—lots of tequila-based cocktails. Free, 7 p.m.-2 a.m., Paris Las Vegas, 702-444-4500.
2. Cinco de Mayo at Texas Station Maricahi ensembles from Western High School, artisan craft vendors, folk dancers, delicious Mexican food and gift giveaways are just a few of the highlights of this family-friendly festival. Free, 4 p.m.-11 p.m., 702-631-1000.
3. Party Under the Dome at THE Plaza The dome façade of this Downtown favorite is home to a bunch of Cinco events: Folklorico dances, mariachi music, live DJs, street tacos, an enormous piñata and eight—count ’em, eight lucha bouts. Free, 7 p.m.-2 a.m., 702-386-2110.
4. Family Festival at Tivoli Village Enjoy an entire day’s worth of events including a farmer’s market, a car and bike show, kid-friendly activities and live entertainment, plus food and drinks from Leticia’s Mexican Cocina, Fusion Beastro and more. Free, 11 a.m.-11 p.m., 702-570-7400.
5. Cinco de Mayo at El Dorado Cantina Las Vegas’ premier farm-to-table Mexican restaurant observes the day with drink specials ($7 Golden Night Margaritas, Modelo Especial Drafts and more), live mariachis and some amazing food. Noon-midnight, 3025 Sammy Davis Jr. Drive, 702-757-3736.