Eclipse Sound is a major Arctic waterway separating Bylot Island from Baffin Island in Nunavut, Canada. This sound connects to Baffin Bay via Pond Inlet to the east and to Navy Board Inlet to the northwest. It is a remote, uninhabited region characterized by dramatic glacial landscapes, eskers, and a dynamic marine environment heavily influenced by the annual cycle of sea ice. The sound is at the heart of the proposed Tallurutiup Imanga National Marine Conservation Area, highlighting its ecological significance. Access and all activities are centered from the community of Pond Inlet (Mittimatalik) on Baffin Island's northern tip. This is a true Arctic saltwater fishery where conditions are dictated by extreme seasons, ice cover, and tides.