Challenger Bank as seen in CARIS subset mode showing point cloud data in 3D mode, profile and plan views. Note deeply incised overhang with undercut floor in profile view (lower left) suggestive of a cave entrance. Profile slice is only a few meters across. This opening is 7 m tall. Also note numerous “voids” or dark holes without data in the 3D point cloud view of the slope in the top frame. Each of these features were inspected, measured and catalogued as potential candidates for ROV dive targets. Image courtesy of Rikk Kvitek, Bermuda Deep Water Caves 2011 Exploration, NOAA-OER.