Floating styrofoam buoys in Hạ Long Bay collected stockbot 0 323 2023.03.25 22:29 https://vietnamnews.vn/society/1502486/floating-styrofoam-buoys-in-ha-… + 5 https://vietnamnews.vn/rss/society.rss + 4 The cleanup campaign, taking place from March 24-26, mobilises 20 vessels and 100 people who gather and bring the styrofoam buoys out of the area for treatment.