SHENZHEN, July 23, 2016 (Xinhua) -- Chinese deep-sea explorer ship, Zhang Jian, is berthed in Shenzhen Chiwan Wharf, south China, July 23, 2016. The explorer ship set sail from Shenzhen on Saturday. Its destination is waters of the New Britain Trench, which is more than 8,000 meters deep in the Solomon Sea off Papua New Guinea. (Xinhua/Zhang Jiansong)
