World Oceans Day is celebrated annually on 8 June to remind us of the important role of the oceans in sustaining our livelihoods and the necessity to prevent them from destruction. According to the United Nations (UN), oceans are the lungs of our planet and a major source of food and medicine, and a critical part of the biosphere. World Oceans Day is observed to highlight the importance of water bodies as they provide shelter to countless fauna and flora which provide us with life-saving oxygen. Furthermore, it is celebrated to generate awareness about human activities like dumping plastic pollution, garbage disposal, oil leaks to send a message to save the oceans. The Oceans Institute of Canada brought the idea of celebrating global ocean day at the Earth Summit of the UN Conference on Environment and Development (UNCED) in 1992. After 16 years, the UN General Assembly passed a resolution in 2008 to designate 8 June as World Oceans Day. A year later, the inaugural observance was organised and the theme was ‘Our Ocean, Our Responsibility. The idea was proposed to celebrate the ocean and the human connection and to raise awareness about the crucial role of oceans in our lives. On this day, various thought-leaders, celebrities, institutional partners, entrepreneurs, industry experts talk about biodiversity and economic opportunity that the ocean sustains. This year’s theme is relevant in the lead-up to the UN Decade of Ocean Science for Sustainable Development, which will go on from 2021 to 2030.