The Coppermine River Mouth is a dynamic site where fresh river water meets the Arctic Ocean. This location is suitable for intermediate snorkelers who can manage strong currents and low visibility, which fluctuates due to river silt. The site features shallow depths ranging from 1 to 4 metres, with an average of 2 metres. Entry is via the shore, and typical sessions last around 20 minutes. Due to the extreme cold, proper thermal protection is essential to mitigate the high risk of hypothermia. Guided tours are available, and toilet facilities are provided near the site.

Napaaktoktok is a sheltered bay located west of Kugluktuk, Canada, characterised by its productive kelp forest habitat. The site is suitable for intermediate divers and snorkellers, offering both shore and boat entry options. Conditions are defined by extremely cold water temperatures, typically ranging from -2°C to 4°C, and mild currents. Divers should be aware of hazards including boat traffic, cold water, entanglement, and low visibility. Typical dives last approximately 30 minutes. While the bay provides some protection from open water conditions, the environment remains challenging due to the temperature. Snorkelling is possible at this site, with a rating of 3 out of 5.

Seven Mile Island is an uninhabited site located 14 kilometres northeast of Kugluktuk, Canada. This marine reef features rocky underwater terrain and oceanic water. Divers and snorkellers should expect challenging conditions, with water temperatures ranging from -1C to 6C and moderate currents. Visibility at the site varies between 3 and 15 metres. Due to the remote location and cold water environment, boat access is required for all activities. This site is suited for advanced divers capable of managing cold water hazards and currents. Snorkelling is possible, though the extreme environment necessitates appropriate thermal protection.