Ever deeper into the cave and it feels so surreal. Water, the greatest natural sculptor, once flowed where we walk until an easier path led it into the depths below. It's hard to tell just how far below the surface we are, or even if we are going up or down. If it weren't for Ranger Jackie I have no doubt we'd be lost down here forever. True adventure
Mammoth Cave National Park (6 of 59)
Shot with FUJIFILM X-T1 and XF16-55mm F2.8 lens
Photo by @jonathan_irish // Photographer and former Nat Geo staffer Jonathan Irish (@jonathan_irish) is on an epic road trip to visit and create incredible content in all of the 59 U.S. National Parks in 52 weeks during the centennial of the National Park Service. He'll be sharing his images and stories along the way here, on his own Instagram feed, and on the following link at Nat Geo: www.natgeo.com/59in52 . #59in52 #onassignment