Living High Seas translates the new High Seas Biodiversity Treaty (BBNJ Agreement) into practical area-based management realities. At the core of the project is a diverse early mover coalition of partner countries who will be supported in initiating submission of regionally supported, co-developed proposals for area-based management tools (ABMTs), including marine protected areas (MPAs), to the BBNJ Conference of Parties for sites of high biodiversity and climate value in the Atlantic, Indian and Pacific oceans. It contributes to the ‘30×30’ target of the Convention on Biological Diversity (CBD) by paving the way for protection of high seas marine ecosystems.