Photograph by @paulnicklen for @natgeo // Descending deep into the flooded caves of Mexico, Matt uses a Closed Circuit Rebreather to allow for bubble-less diving in a cenote called ’The Pit’. There are many benefits to using rebreathers including minimal gear, longer bottom-times, maintaining a constant partial pressure of oxygen in the system, breathing warm and moist air and most of all, silent diving. To dive a rebreather in these caves is to enter into a meditative state of peace, awe, humility and gratitude. #followme on @paulnicklen to see more images from this incredible underground world. #thejourneyneverends #explore #adventure #gratitde #follow #beauty #cave