The special expedition has been organised with the support of the MMCO and the Ministry of Blue Economy, Marine Resources, Fisheries and Shipping of Mauritius to mark World Oceans Day on 8 June to raise awareness on the role of oceans and the need to protect them. Oceans occupy 70% of the Earth’s surface, and hence represent the largest ecosystem; they are home to a large percentage of the planet’s biodiversity. They support essential services for people, such as food provision, climate regulation and recreation. They are also crucial for the economy. But they face a number of threats mainly deriving from human activities – the recent shipwreck of a chemical-laden cargo ship off the coast of Sri Lanka and the oil spill caused last year by the shipwreck of the MW Wakashio off the coast of Mauritius remind us that those threats are real. Those threats affect ecosystems and marine life, including species such as sperm whales. There is growing concern that a broad range of marine species are under increased risk of extinction and that marine biodiversity is experiencing potentially irreversible loss due to a number of threats that include overfishing, bycatch, climate change, invasive species and coastal development. The coronavirus pandemic has raised our attention on the human-nature linkage.