In reply to Rourke:
from japan its a relatively popular destination for skiers/boarders.
some friends of mine went several years ago (try search stuff on 'the twelve' collective). they recount all sorts of odd stories about cheap helis, being given kalashnikovs for the bears, bizarre bribery attempts and the strange terrain.
other friends have booked charter tours for skiing thru japanese companies.
if it helps they went via magadan. in the past there were weekly flights between magadan and anchorage with a stop in kamchatka on the return leg. not sure these still operate.