The fourth International Marine Protected Areas Congress (IMPAC4) will meet in La Serena – Coquimbo, Chile, from 4-8 September 2017. A high-level meeting will take place on 9 September in Valparaiso, Chile. IMPAC4 will convene under the theme ‘Marine Protected Areas: Bringing the people and ocean together,’ underscoring the ocean-human relationship and the benefits of marine protected areas (MPAs) and the ocean for those who depend on their ecosystem services. The meeting will address: MPAs and global change, including climate change and ocean acidification; MPAs and coastal communities, including empowerment of women, and development and economic growth; successful MPA management, including sustainable development initiatives and finance for MPAs; and MPAs and shared visions, including marine spatial planning and youth-led collaborative action. The high-level meeting will aim to link a Valparaiso Declaration with Aichi Biodiversity Target 11 (on ensuring, by 2020, at least 17% of terrestrial and inland water, and 10% of coastal and marine areas, are conserved through protected areas and other conservation measures, and integrated into wider landscapes and seascapes) and Sustainable Development Goal 14 (life below water). IMPAC4 is being organized by the Chilean Ministry of the Environment and the International Union for Conservation of Nature's (IUCN) World Commission on Protected Areas (WCPA), with support from the Food and Agriculture Organization of the UN.