Colour, flavour, beaches, siesta and fiesta are the Mexican mix's main ingredients. Beyond spring break, Cancun flaunts splendid shores and those remarkable Mayan ruins. For some small-town seaside serenity, Ixtapa and Zihuatanejo offer plenty of quaint charm. On Mexico's Baja peninsula, Los Cabos is a haven for water sports enthusiasts. Meanwhile, all things affluent abound in Puerto Vallarta.