The bars along 5th Avenue start hopping as early as sunset, but Calle 12 doesn’t pick up until well after dark. Pronounced kah-yeh doh-say, the lane is Ground Zero for Playa del Carmen’s wilder nightlife, with nightclubs and bars on both sides of the street between 10th and 1st avenues. The hottest venue depends on when you go—which night, week, or even season—but the most popular spots include Coco Bongo, La Vaquita, Coco Maya Beach Bar, and Mandala. (Note: Things don’t start till 11 p.m. at the earliest on Friday and Saturday nights.)