I read about a sailboat some years back that did it along with the NW passage
in one season. Sort of a polar circumnavigation
. I think they were Norwegian, which may have helped with permitting and such.
Wish I could remember where I saw it.
I think the crux would be getting from the Kara Sea into the Laptev sea--there's a narrow channel that looks like it would easily choke with ice.
Which direction were you thinking of? I think coming from the east would be easier, but I think the Norwegians did it starting in Norway