Traveling to the southern hemisphere, this expedition takes the team to Jarvis Island, one of the most poorly mapped areas under US jurisdiction, where our high-resolution bathymetric seafloor mapping will add to the world’s baseline knowledge of this poorly studied part of the Pacific Remote Islands Marine National Monument (PRIMNM). High-resolution seafloor mapping will help identify unique and interesting features for future ROV exploration and supports management and conservation efforts within one of the largest marine protected areas in the world.