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Internal waves in the Arctic regions have been of recent scientific interest due to their role in vertical mixing, and their consequent influence on the heat budget of the upper ocean and ice cover. Until now there were no internal tidal waves observation in Hudson Bay. As evidenced by SAR remote sensing imagery, the Belcher Islands archipelago is one of the most active region for internal tidal wave generation in Hudson Bay due to its unique shoreline, bottom topography and proximity to an amphidromical point. Here we present and examine the first ever collected for the studied region temperature, salinity and current velocity data from the ice tethered mooring deployed in an ice covered narrow channel between Broomfield and O’Leary islands located in the south-east tip of Belcher islands group in Hudson Bay and discuss a possible impact of internal tidal waves on water mass characteristics.