Core Points - The third United Nations Ocean Conference, co-hosted by France and Costa Rica, opened on June 9 in Nice, France, focusing on global ocean governance [1][2] - The conference aims to accelerate actions and mobilize all stakeholders to protect and sustainably use the oceans, guided by the United Nations Sustainable Development Goal 14 (SDG14) [1] - Key priorities of the conference include enhancing multilateral processes related to oceans, funding for SDG14, and strengthening ocean science knowledge for better policy-making [1] Event Details - The conference will last for five days and feature 10 plenary meetings and 10 thematic forums on ocean action [2] - A concise, action-oriented declaration known as the "Nice Ocean Action Plan" will be adopted through consensus [2] - The first UN Ocean Conference was held in 2017 in New York, co-hosted by Fiji and Sweden, while the second took place in 2022 in Lisbon, co-hosted by Portugal and Kenya [2]