Tomer Ketter has been fascinated by maps since his early days of exploring with his father. Today, he is co-chief scientist of the #NazcaHighSeas expedition, leading a team of international scientists to explore lush underwater habitats that were largely unmapped and understudied — until now. The team has collected valuable hydrographic and oceanographic data and they have observed breathtaking wildlife along the Nazca and Salas y Gómez Ridges in the high seas. Their work could provide the data needed to establish protections in these essential areas of our global ocean.