Brace yourselves for the start of a reason-to-drink-every-weekend season. With the opening of outdoor patios, spring and summer festivals, even Mother’s Day upon us, you’ll likely be thinking of cold beers and salt-rimmed margaritas. On Sunday, the party gets started around Denver for Cinco de Mayo. These 10 restaurants, bars and street parties are offering tequila tastings and bottomless drinks and also some sustenance. Cinco de Mayo Celebrate Culture Festival Location: Civic Center When: May 4-5, 10 a.m.-8 p.m. Website: cincodemayodenver.com Unique events at this annual festival include a taco eating contest and the super-adorable chihuahua race.