Aye, it's a great pair of books! Have you got to the double glazing yet, and the ice breakup on the Yenesey? Incredible - something I'd really like to see!
No, I'm still in the first book. It really requires a trigger warning though, as they seem to spend much of their time shooting birds.
If you want to see spring breakup on the Yenisei, best to go soon. The date of spring breakup in Dawson City on the Yukon River is getting earlier every year and the breakup is less and less exciting. I don't know if it's easier to get to Dawson City or Krasnoyarsk.
From breakup to 'fake-up'