Tulum is magical. I can’t think of any other place in the world that casts its spell so quickly. As soon as you come up for air after your first dive in the warm turquoise sea there, you’ve already forgotten what day and time it is. Tucked between Mexico’s luxe Mayan Riviera and the expansive Sian Ka’an Biosphere, Tulum has long been a well-kept secret of eco-conscious travelers in search of life’s simple pleasures: a great climate, a perfect beach, simply prepared seafood, a strong margarita. R...