For Indigenous Peoples and local communities, rivers are not just sources of water—they are also essential for fishing, cooking, travelling, and sustaining daily life. In many cultures they also have deep spiritual significance. Where rivers become unhealthy, the impacts on people’s health, cultures and wellbeing can be very substantial, and environmental impacts can also be significant. This guide for Indigenous Peoples and local communities presents a variety of options for monitoring the health of your local rivers and the diversity of life (biodiversity) that they support.