November 8, 2019 COLUMN | What I learned at the 2019 Underwater Mining Conference [The Bow Wave] Written by Andrew Baird on November 8, 2019. Posted in Seabed Mining, Work Boat World Features. For those who don’t know of Sanya, it is a city on the South coast of the Chinese island of Hainan which sits at the northern end of the South China Sea, not far .. Read More