Snowboarding

I'd expect you need less insulin. Also, glucose meters don't like the cold, so keep yours close to your body. Otherwise it will say 'too cold' and you'll have to spend another 5 minutes on the slope with the thing under you arm or between your legs. Also #2, you could invest in a freestyle libre sensor, which enables you to scan with your phone very often. Makes life way easier. I started on it shortly after starting insulin when I had to work on a sailing ship. So happy I did! The only downside is that I didn't want to go without my libre afterwards, so it has become a very expensive thing.

Have fun on the slopes!