On the way to Whistler you can run Ehalo-
Squamish, below the hard run there is a 3/4 section.
There is a tributary that flows into the Ehalo-
Squamish near the take out for this run.
Above the mine run there is a II+-III play run.
If your want something harder but not the mine
run then they can paddle mini-mine run
which is a few mile above 50/50 just below
the take out.
There is a class II-III run on the Green
from the lake about three miles long. Don't
go past the take out as it gets much harder.
There is a class III run on the Lilloquet
North out of Pemberton.
You can also paddle Cayoose Creek which has
easy and sections.
Back closer to Whistler Your friend can paddle
the Checkamus, which should be considered hard
IV, an easier section would be the Cal-Check
where you would put on the Callghan where
it crosses the highway that takes you to Whistler.
Drive downriver to find the take out. Make sure you get
out before the river gets hard.