Homan River - A fun section that only takes a day to paddle that is mostly class III read & run with a class V canyon and class IV canyon (both easy to hike around).
Logistics: Either fly in to Homen Lake (recommend Alpine Aviation in Whitehorse) or take the Whitepass train in and hike up (~12hrs of bush wacking). Either set a power boat shuttle or take the train back to Fraser or Carcross.
Trip can be done in a day, but would recommend planning to camp at the top or bottom. Good camping close to the last class IV canyon (nicknamed Moose Knuckle), which is easy to knock off a couple of laps on.