Aerial view of a cenote surrounded by lush forest in Riviera Maya

aerial view cenote riviera maya natural pool limestone sinkhole lush forest freshwater geological formation tropical ecotourism nature reserve hidden gem travel destination serene greenery jungle clear water natural wonder yucatan peninsula outdoor adventure swimming hole mayan culture natural beauty cenote pool wilderness crystal water diving spot sinkhole ancient tranquility biodiversity pristine environment conservation area ecofriendly destination archaeological site mexico landscape environment exploration tourism unique ecosystem underground water system karst topography