Unfortunately that wasn't a complete victory. I wanted to start off higher so I did a temporary basal last night of either 70% or 80% (I don't remember offhand), which made me start the day at 15 mmol/L. I then did the usual insulin trick of 25% of my meal bolus and 25% basal running in the background while skiing. That meant I got out to Kakabeka and was about 20 mmol/L.
I need to add that I didn't do a good job waxing my skis. I had way too much wax on them and wasn't able to glide like at all. I even walked up a hill like nothing. But without being able to glide, I was working a heck of a lot harder than I normally have to and had a really tough time getting around (as I've been telling everyone, I basically walked the entire 4km).
When I finished the trail, I did glucose and was still around 20 mmol/L. So I immediately stopped whatever was left of my temp basal and did a corrective bolus. We stopped to take pictures of the falls, then headed home. By the time I got there, I was down to 5 mmol/L (this was within about a half hour). So I drank a cup of chocolate milk without doing a bolus, which stabilized me; before dinner I was about 6 mmol/L, which is exactly where I wanted to be.
So through all of this, I learned an important lesson: if I start out too high, I need more insulin working while I'm skiing. I don't know exactly what I'll do differently next time that happens. I can either increase the meal bolus or increase the temp basal (or I guess the third option is to do a little of both).
But despite what went wrong, I'm still just incredibly happy to have made it safely around a 4km loop!
