![Volunteers clean waste on beach in Dongshan County, southeast China\'s Fujian Province, Oct. 2, 2017. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people\'s consciousness to preserve oceans on Earth. (Xinhua/Song Weiwei)](http://www.ecns.cn/hd/2018/06/08/9ff5aae21cdb419ab6022519258fc379.jpg)
Volunteers clean waste on beach in Dongshan County, southeast China's Fujian Province, Oct. 2, 2017. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people's consciousness to preserve oceans on Earth. (Xinhua/Song Weiwei)
![Volunteers free fries in Sanya, south China\'s Hainan Province, June 6, 2018. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people\'s consciousness to preserve oceans on Earth. (Xinhua/Chen Wenwu)](http://www.ecns.cn/hd/2018/06/08/611e09beb9cc42ba81391b5416517b43.jpg)
Volunteers free fries in Sanya, south China's Hainan Province, June 6, 2018. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people's consciousness to preserve oceans on Earth. (Xinhua/Chen Wenwu)
![Members of China\'s Antarctic expedition put a micro plastic collector into the sea, Nov. 19, 2017. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people\'s consciousness to preserve oceans on Earth. (Xinhua/Bai Guolong)](http://www.ecns.cn/hd/2018/06/08/88c7b3aeee354ce5a15e3555f373fa99.jpg)
Members of China's Antarctic expedition put a micro plastic collector into the sea, Nov. 19, 2017. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people's consciousness to preserve oceans on Earth. (Xinhua/Bai Guolong)
![Cleaners clear the floating waste in the fish breeding rafts in Huangqi Township of Lianjiang County, southeast China\'s Fujian Province, June 6, 2017. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people\'s consciousness to preserve oceans on Earth. (Xinhua/Jiang Kehong)](http://www.ecns.cn/hd/2018/06/08/4ffb85cba0be4682b139fe22531bfdda.jpg)
Cleaners clear the floating waste in the fish breeding rafts in Huangqi Township of Lianjiang County, southeast China's Fujian Province, June 6, 2017. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people's consciousness to preserve oceans on Earth. (Xinhua/Jiang Kehong)
![China\'s manned submersible Jiaolong is prepared to dive in the Yap Trench in the west Pacific, June 13, 2017. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people\'s consciousness to preserve oceans on Earth. (Xinhua/Liu Shiping)](http://www.ecns.cn/hd/2018/06/08/ab18079283ce4869a654626db4b25541.jpg)
China's manned submersible Jiaolong is prepared to dive in the Yap Trench in the west Pacific, June 13, 2017. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people's consciousness to preserve oceans on Earth. (Xinhua/Liu Shiping)
![Pearl cultivators transfer shells at a pearl cultivation farm in Beihai City, south China\'s Guangxi Zhuang Autonomous Region, Dec. 7, 2017. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people\'s consciousness to preserve oceans on Earth. (Xinhua/Zhang Ailin)](http://www.ecns.cn/hd/2018/06/08/c919b66ac4ff4270a59c799a348f95e5.jpg)
Pearl cultivators transfer shells at a pearl cultivation farm in Beihai City, south China's Guangxi Zhuang Autonomous Region, Dec. 7, 2017. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people's consciousness to preserve oceans on Earth. (Xinhua/Zhang Ailin)
![A little girl stays at a camp in Qingdao Haichang Polar Ocean Park in Qingdao, a coastal city in east China\'s Shandong Province, May 19, 2018. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people\'s consciousness to preserve oceans on Earth. (Xinhua/Li Ziheng)](http://www.ecns.cn/hd/2018/06/08/ec6bc503f7ec44639632236ddc0d1b3c.jpg)
A little girl stays at a camp in Qingdao Haichang Polar Ocean Park in Qingdao, a coastal city in east China's Shandong Province, May 19, 2018. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people's consciousness to preserve oceans on Earth. (Xinhua/Li Ziheng)
![A seaweed harvest boat sails at a seaweed farm in Sansha Township in Xiapu County, southeast China\'s Fujian Province, Nov. 26, 2017. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people\'s consciousness to preserve oceans on Earth. (Xinhua/Jiang Kehong)](http://www.ecns.cn/hd/2018/06/08/8b83ef5fff994630bd3d44e9ab616842.jpg)
A seaweed harvest boat sails at a seaweed farm in Sansha Township in Xiapu County, southeast China's Fujian Province, Nov. 26, 2017. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people's consciousness to preserve oceans on Earth. (Xinhua/Jiang Kehong)
![Photo taken on Jan. 26, 2018 shows the scenery of Xinying mangrove national wetland park in south China\'s Hainan Province. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people\'s consciousness to preserve oceans on Earth. (Xinhua/Jiang Enyu)](http://www.ecns.cn/hd/2018/06/08/cff98901ab0a409488c788beb851c902.jpg)
Photo taken on Jan. 26, 2018 shows the scenery of Xinying mangrove national wetland park in south China's Hainan Province. World Oceans Day, a UN-designated day held annually on June 8, aims to arouse people's consciousness to preserve oceans on Earth. (Xinhua/Jiang Enyu)