Environmental activist Cristina Nolasco, 32, explores the Yorogana cave, which she says has been affected by the construction of the new Mayan Train route, in Playa del Carmen, Quintana Roo, Mexico, November 6, 2022. "This was completely clean, crystal clear, drinking quality water, until a few weeks ago," said Nolasco talking about the water in the caves, "what we see is that construction material is leaking to contaminate the drinking water we have on the peninsula."REUTERS/Jose Luis Gonzalez