In a dedicated effort under the ArcticNet project titled "Integrated Marine Geoscience to Guide Environmental Impact Assessment and Sustainable Development in Frobisher Bay, Nunavut", a comprehensive data set was compiled between July and October 2015 aboard the MV Nuliajuk. This collection involved multibeam echosounding, a technique used to map the seabed. Additionally, shallow sub-bottom profiles were also recorded using a 3.5 kHz sounder. The primary objectives for this endeavor were to map glacial formations at the bottom of Frobisher Bay, enhance the imagery of previously detected submarine slope failures in the inner bay, and probe potential submerged coastlines in the bay's outer areas. This invaluable data set adds an expansive 655 square kilometers of detailed coverage to the existing bank of seabed data for the region.