Puerto Vallarta, a movable feast for the senses, offers more than glorious sun and sandy beaches. The rustic old town boasts some of the best tacos you’ll eat in Mexico. This 3.5-hour food walking tour shares some of the best culinary secrets of PV, as the locals call it. Let your guide take you to a handful of local hot spots — from hidden taco carts to food markets — including an art tour along the beach as you discover regional history. Numbers are limited to eight for a small-group experience.