Well-managed Marine Protected Areas (MPAs) provide a range of benefits to biodiversity, climate, and people through provisioning, supporting, regulating and cultural ecosystem services (ES). Indeed, MPAs are vital sanctuaries for numerous marine species, protecting them from dangers such as overfishing, habitat loss, and pollution. By providing safe breeding and feeding grounds, MPAs not only conserve biodiversity but also help restore fish populations, benefiting both marine ecosystems and the livelihoods of coastal communities. This dual impact highlights the crucial role MPAs play in sustaining ocean health. In addition, MPAs serve as valuable centres for scientific research, advancing our understanding of marine ecology and guiding more effective conservation strategies to strengthen the resilience of global marine environments. The Namibian IslandsÕ Marine Protected Area (NIMPA) lies within a crucial Ecologically or Biologically Significant Marine Area (EBSA), encompassing the primary upwelling centre of the Benguela Current off Namibia's coast. Covering approximately 9,500 km², NIMPA is AfricaÕs second-largest marine protected area, and aims to be safeguarded through its new operational management plan currently in the approval phase. The NIMPA+ project supports this implementation and is driving additional initiatives to support coastal livelihoods. Ecosystem services in NamibiaÕs coastal waters are under threat from impacts from diamond mining, oil and gas exploration, and overfishing. The management of NIMPA aims to protect critical ecosystem services Ñ including fisheries, kelp habitats, carbon sequestration, and cultural heritage Ñ essential to biodiversity, climate resilience and local communities against such threats. Quantifying and valuing these services, through ecosystem services valuation (ESV) can underscore NIMPAÕs impact and inform better resource management. Although ESV supports more inclusive decision-making through highlighting non-market values, some benefits of nature defy precise valuation and should be viewed as approximate. This report highlights a selection of ecosystem services that are being protected and improved through the implementation of the Operational Management Plan (OMP) of the NIMPA. It also aims to help identify where further research and data collection is required in order to achieve the best understanding of the benefits provided by a healthy and thriving NIMPA.