Under-the-radar, unassuming Taqueria Santa Cruz crouches in the back of a Mexican grocery store and bakery, which bear the same name, in St. Johns. It's the kind of rare feeding post that compels keepers of its secrets — gratis guacamole at the DIY salsa bar, amply portioned burritos, and legit tacos composed with two tortillas per order — to share with just a select few. You can pick up a bag of chips, hard-to-find bottled salsa, or a pinata in the street-facing shop up front and grab a crumbly pastel-dyed sugar cookie from the panaderia as you hit the road. Photographer Katherine Acheff dropped in at 1 p.m. on Sunday to soak up all of that goodness. Of course there was Mexican Coke.