At The Cancún Sun, we make a sport out of chasing hidden-beach rumors—and Xpu Há (pronounced shpoo-HA) might be one of our favorites. Between the high-energy scene of Cancún and the influencer buzz of Tulum lies this unassuming cove of bone-white sand, calm turquoise water, and hammock-worthy tranquility. It’s the Goldilocks zone of the Riviera …