On May 10, the expert caver set out on a pioneering mission to explore one of the many uncharted tunnels in the world’s largest cave system. High up in the remote mountains and deep jungles of west Vietnam, near the Laotian border, rests an all too familiar sight for the 38-year-old caver: Thung Cave, today the frontier of a new discovery.
Routes and safe passage had long been charted through the famous Thung Cave. Yet at every turn, explorers noted obscure rifts and black cavities, some perched on high, beyond reach—for years these waited, taunting and beckoning them. Today, one such side quest beckoned. A long-known black hole, high on a chasm wall, was to be explored.
