Chucking a ventilation hole in your igloo or snow cave seems like common sense, but it wasn’t till bedtime that we realised that we hadn’t poked one. Although Billy was adamant that it was a myth, and that there was no way we’d suffocate with an opening that wide, we decided that poking a hole was easier than dying. Praise the life-giving hole! – @annika_king Stay oxygenated people! It’s pretty important to make sure your entrance isn’t going to get closed over, once the snow freezes the rest of the igloo will become completely airtight. Poke some ventilation holes, dig the entrance trench deep and don’t cook inside. Farts on the other hand — they’re encouraged.