A world belonging to only one in ten million. Compared to the increasingly mainstream form of scuba diving,"cave diving"can be considered an upgraded version of extreme sports. Whether in terms of difficulty or equipment, it takes things further and is no longer a field accessible to the general public. Among the 7 billion people on Earth, only a very small and rare group qualify to enter this silent and dark world. Cave diving is about appreciating and protecting caves. “When you stand before caves formed millions or even more years ago, human life seems but a blink. We cave dive not to conquer the caves, but to appreciate and protect them.” Adding a Chinese coordinate to the world’s cave records. In late May this year, they just completed the first exploration of Green Grotto Pool in 2017.Green Grotto Pool is located in Yanqian Village, Meizhou, Guangdong. The surface area is over 100 square meters, surrounded by bizarrely shaped rocks. The space inside is vast. The water temperature fluctuates slightly, with two layers underwater—the upper layer is slightly warmer, while the bottom is colder, around 20°C.
