Playa del Carmen, now the third-largest city in Quintana Roo, ranks up there with Tulum as the Riviera’s trendiest cities. Sitting coolly on the lee side of Cozumel, the town’s beaches are jammed with super-fit Europeans. The waters aren’t as clear as those of Cancún or Cozumel, and the beach sands aren’t quite as champagne-powder-perfect as they are further north, but still Playa (as it’s locally known) grows and grows. The town is ideally located: close to Cancún’s international airport, but far enough south to allow easy access to Cozumel, Tulum, Cobá and other worthy destinations. The reefs here are excellent and offer diving and snorkelling close by. Look for rays, moray eels, sea turtles and a huge variety of corals. The lavender sea fans make for very picturesque vistas.