Cancún, Playa del Carmen and Mexico's Quintana Roo state are renowned for their white sand beaches and turquoise waters. But in recent years, large quantities of sargassum seaweed have affected many stretches of coastline, making some beaches less appealing. It combines underground rivers that visitors can swim or float through with wildlife exhibits and cultural displays, before culminating in an evening performance celebrating Mexican history and traditions. Xplor focuses more on adventure, with lengthy zip-lines above the jungle canopy, amphibious vehicle trails, underground rivers and raft courses through flooded caves. Among the visitors we met were Mexican families from the country's northern states, alongside large numbers of Argentinians and Brazilians, giving the region a distinctly Latin American feel.