In November 2015, UNESCO proclaimed July 26 as the International Day for the Conservation of the Mangrove Ecosystem, thereby underlined the importance of the unique but vulnerable mangrove ecosystems around the world. Mangroves provide substantial benefits, by improving food security, protecting against storms or shoreline erosion, providing habitats of rare wildlife species and sequestering and storing blue carbon important for mitigating climate change. To this occasion, PROBA-V visits the Can Gio mangrove forest and biosphere reserve in Vietnam, ~40 km southeast of Ho Chi Min city that is visible in grey tones at the top of the image. The myriad of waterways through the mangrove forest (dark red, centre) and agricultural fields (dark tones on the banks) are particularly striking. This is put in contrast to the city’s growth in population, which has nearly doubled to 8.5 million over the last 20 years.