Photos: exploring giant caves in China

Photographer Robbie Shone goes deep underground with the Hong Meigui Expedition in China.
By Marc Schwarz
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Climbing to the light
Caving Expedition to explore the caves of the Tongzi mastersystem in northern Wulong County, Chongqing Province of China
Climbing to the light Climbing the rope up a vertical section of cave known as a pit in Xinu Attic. © Robbie Shone
Bolting in
Caving Expedition to explore the caves of the Tongzi mastersystem in northern Wulong County, Chongqing Province of China
Bolting in American cave explorer Mike Ficco places bolts and begins his descent of a vertical pit in a cave called Xinu Attic. © Robbie Shone
The trek home
Caving Expedition to explore the caves of the Tongzi mastersystem in northern Wulong County, Chongqing Province of China
The trek home Expedition members Mike Ficco and Erin Lynch carry bags of equipment back from the cave late in the evening. © Robbie Shone
The cathedral doors
Caving Expedition to explore the caves of the Tongzi mastersystem in northern Wulong County, Chongqing Province of China
The cathedral doors The view back towards the towering entrance and the main river passage in Quankou Dong. Thick beds of limestone break through towards the ceiling high up above the floor of the cave. © Robbie Shone
Out of the cave, into the kitchen
Caving Expedition to explore the caves of the Tongzi mastersystem in northern Wulong County, Chongqing Province of China
Out of the cave, into the kitchen Typical kitchen scene inside the rural farmhouse whilst a meal is being prepared up at the remote village of Ranjiagou. The fire is kept alight below the large circular stove.
Blinded by no light
Caving Expedition to explore the caves of the Tongzi mastersystem in northern Wulong County, Chongqing Province of China
Blinded by no light Blind Fish without any eyes swim around in small pools of water in Qi Dong. © Robbie Shone
The elephant's playroom
Caving Expedition to explore the caves of the Tongzi mastersystem in northern Wulong County, Chongqing Province of China
The elephant's playroom Two cave explorers are dwarfed for scale in a section of cave called Dancing Elephant Troop. Here two huge passages intercept and form a giant section of empty space, deep underground in San Wang Dong. © Robbie Shone
Cave crawl
Caving Expedition to explore the caves of the Tongzi mastersystem in northern Wulong County, Chongqing Province of China
Cave crawl Hong Meigui team members, Duncan Collis and Matt Ryan make progress along an awkward stretch of passage known as "Where the Wind Blows" underground in San Wang Dong, suitably named because of the strong wind that whistles through this small tunnel, churning up dust and sand particles into the air. © Robbie Shone
Underground towers
Caving Expedition to explore the caves of the Tongzi mastersystem in northern Wulong County, Chongqing Province of China
Underground towers Perfectly situated in the middle of the passage, this giant calcite stal boss makes a huge statement. Dwarfed by it's sheer size, Hong Meigui team member, Matt Ryan can only look up in amazement. This is one of many gigantic formations in San Wang Dong. © Robbie Shone
Climbing the caves
Caving Expedition to explore the caves of the Tongzi mastersystem in northern Wulong County, Chongqing Province of China
Climbing the caves Gaining height step by step, Duncan Collis climbs a thin rope up to a small ledge overlooking the vast floor surface of Niubizi Tian Keng in the Er Wang Dong cave system. © Robbie Shone
Cave camping
Caving Expedition to explore the caves of the Tongzi mastersystem in northern Wulong County, Chongqing Province of China
Cave camping The underground camp in Sang Wang Dong is a cosy and warm place to stay. Hot food and drink recharge weary and tired explorers before taking a few hours sleep in either suspended hammocks or on roll mats on the floor. © Robbie Shone
The wet route
Caving Expedition to explore the caves of the Tongzi mastersystem in northern Wulong County, Chongqing Province of China
The wet route Deep pools of water challenge cave explorers Erin Lynch and Lars Abromeit as they try to remain dry through the awkward sections of Queen of the Nile, deep underground in San Wang Dong. © Robbie Shone
Rappelling to water
Caving Expedition to explore the caves of the Tongzi mastersystem in northern Wulong County, Chongqing Province of China
Rappelling to water Hong Meigui co-founder Erin Lynch prepares to descend down into the black chasm below her. A deafening waterfall plummets behind, whipping up wind and spray into the air. This is the entrance to a section of cave called Queen of the Nile. © Robbie Shone
Pillars of the earth
Caving Expedition to explore the caves of the Tongzi mastersystem in northern Wulong County, Chongqing Province of China
Pillars of the earth Large stalagmites at the foot of a giant ramp to another level of caves in San Wang Dong create a spectacle midway in a section of cave called Crusty Duvets. The jagged, uneven floor surrounding the three formations is as delicate and untouched as the stalagmites themselves. © Robbie Shone
An underground river rages
Caving Expedition to explore the caves of the Tongzi mastersystem in northern Wulong County, Chongqing Province of China
An underground river rages American speleologist Erin Lynch struggles to pull her way across a raging torrent of white water that could tear her away from her only lifeline, sending her on a treacherous path down the main river in Quankou Dong. © Robbie Shone
Light shines through Cloud Ladder Hall
Caving Expedition to explore the caves of the Tongzi mastersystem in northern Wulong County, Chongqing Province of China
Light shines through Cloud Ladder Hall Suspended on a thin rope a tiny figure is dwarfed by the sheer size on a monumental scale of Cloud Ladder Hall. The beam of light cast by anothers headtorch pierces the fog yet illuminates nothing. This naturally formed room is so large it has it's own weather system going on.