First of all, diving is not the main purpose of our expedition. We will dive when we want to dive, not every day.
Polar diving is not the most extreme kind, but it does require some special skills.
Water temperature may reach down to -2 Celsius, which means that every diver should be confident and comfortable with their equipment. Cold water experience is required. Expect a maximum 2 dives per day (but not every day!) at depths of up to 20 meters. For diving with some animals we will use tanks, sometimes snorkel gear would be enough.