Our visit to the UNESCO World Heritage Phong Nha-Ke Bang National Park was one of the highlights of our time in Vietnam. The area is famous for its dramatic karst scenery of extensive cave systems (including the world’s largest) and rugged mountainous peaks. Our journey there began with a gruelling four hour local bus journey from the historical city of Hue. We were packed like sardines, two to a seat, with some perched awkwardly on plastic stools in the aisle. The bus had air con, but the driver opted for natural ventilation instead; fine if you had a window seat, not so great if you are sandwiched between four Vietnamese, as I was. The typical Asian cargo load of mystery packages, squawking chickens and a motorbike were offloaded seemingly at random on rambling detours. The bus was equipped with a novelty horn, which the driver used enthusiastically and unnecessarily throughout the journey, much to our annoyance. Several passengers attempted to sit in the unoccupied front seat, but it soon became clear that this was exclusively reserved for Vietnamese babes, for whom we digressed further from our route to pick up and drop off along the way. After arriving, and once we’d restored the blood flow to our lower extremities, we walked a short distance to another pepper farm home stay, from where we explored the park the next day.
Son Doong Cave, discovered in 2009, is officially the world’s largest. It is apparently so big that an entire Manhattan street block, skyscrapers and all, could comfortably sit within it. The cave’s vast size and inaccessibility mean that access involves a $3000, five day expedition, so we settled for the more tourist-friendly options. Our first visit was to Paradise Cave, another fairly recent discovery, which is a staggering 31km long. Access required a walk through the jungle and 500+ sweaty steps up to the modestly sized entrance. As we approached we were greeted, to our delight, by a huge draught of cool air. It was like entering an enormous walk–in fridge – just what we needed after our sweltering climb. We descended down some steps into the cathedral-like atrium. Echoed voices and the reverberating drips of mineral rich water, together with the dim lighting, contributed to the mystical atmosphere. The cave impressed not only in scale but also in the peculiar formation of its immense stalagmites and stalactites.
The high point of the day had to be the adventurous and surreal experience we had at the ominously named Dark Cave. Upon arrival we were fitted with life jackets, head torches and hard hats before kayaking to the cave-mouth and entering, bare foot, over sand. Unlike Paradise Cave there was no artificial light and so we were quickly reliant on our torches to guide us. We were led through a labyrinth of narrowing passages, the cave walls gradually turning from hard rock to slippery wet clay. The tunnel became more challenging and we were soon clambering over what felt like lumps of soft butter, which squelched through our toes with each step. It was a constant battle for grip. At one point we had to climb up a steep slippery slope and many surrendered inevitably to painful-looking falls. Fortunately the soft clay surroundings were akin to a padded cell, making serious injury virtually impossible. After regaining our footing we reached the end of the trail, where we slid downwards into a huge mud bath. We sunk deep into the cool, oozing clay and switched off our torches. It was one of those rare occasions when you get to appreciate the unreal sensation of complete darkness. The playful European boys in our group spotted the opportunity to use the shield of darkness for some mischievous poking and groping of their bikini-clad friends. This progressed into a full on mud slinging fight, in which we caked each other from head to toe. It was like a kids party when someone shouts “FOOD FIGHT!” A swim in the cool cave river provided a welcome opportunity for some mud scrubbing. I made a particularly poor effort of cleaning my face, much to everyone’s amusement as we exited the cave.
Our day ended with an hour or so of driving through the beautiful surroundings of the park. The spectacular karst formations against the evening sky made for a breathtaking landscape. The distant humps appearing as through they’d once spontaneously erupted from the earth below. We left the park excited that the same cave systems would bring us further adventures across the border in Laos.