How to Build an Igloo in 10 Steps
9. Use the saw to make a fist-sized air hole high on the side of the igloo. In snowy conditions, leave a ski pole in the hole to use like a bottle brush to keep it clear.
10. Some cautions for parents: Always supervise children when they’re playing in and around the igloo. Once the igloo is up, check it regularly for structural integrity. Never allow stoves or candles inside. Keep the air hole clear.