In response to the challenges of navigating Arctic waters, a collaborative effort between the Royal Danish Navy and DHI has led to the development of NANOKnavi – a satellite based tool. This satellite-data-based tool provides detailed maps of submerged hazards, improving safety in Greenland's coastal Arctic waters. By integrating local knowledge and leveraging advanced technology, NANOKnavi empowers mariners to navigate safely through remote and poorly-charted areas, enhancing the resilience of local communities and protecting the fragile Arctic marine environment.