Unless you're an experienced cold-weather camper and know your tolerance for cold precisely, bring a warm sleeping bag. Even in midsummer, the nights can be very chilly, and rapidly changing weather means hypothermia is always a risk when camping for extended periods. You will be much warmer and more comfortable if you bring a sleeping pad to insulate you from the ground. A bivy sack can also provide you with an extra layer of insulation. A wet sleeping bag is useless.
Food Be generous in estimating food requirements.
Nunavut's generally cool environment and rugged terrain place heavy demands on the body's energy reserves, especially when backpacking or doing other activities out on the land. Campers or others planning to prepare their own meals should come well supplied with food, particularly if specialized products like dehydrated camping food are required, since they may not be widely available. Stores in larger communities offer a reasonable selection of food, and prices are competitive once you factor in shipping costs. On the other hand, selection in the smaller communities can be extremely limited, especially during the peak visitor season in July and August, which is usually before the annual resupply by ship. Water As when camping anywhere, always draw water from running sources rather than from stagnant ponds or pools.