Kusawa Lake is
about 50 miles North of Whitehorse, you turn off the Alaska Hiway and follow
the access road for about 15 miles.
Eventually you
come to the first campsite,"Suburbia on wheels", nothing but wall-to-wall
RV's complete with kiddies playground.
If you like that
sort of "camping", this is your spot. If you want something different,
keep on going until you get to the second one, this one is mainly for campers
and small rv's. The sites are a little farther apart, and are semiprivate.Here
is also a good,spacious boatlaunch.and finally,you can still keep on going
past the mudslide to the last campground, this one is mainly for tents
and other small arrangements. All three are government maintained
and are well kept up.If you like a little privacy, the third one is the
one. You can put your boat in the water at the boatramp and pull it ashore
near your campsite right on the sandy beach.
The lake is long
(about 50 miles)and maybe two miles wide,and it can get very rough, when
the wind picks up. 6 foot waves within fifteen or twenty minutes are not
unusual, so a boat has to be able to cope with that.
The water is very
clear and cold. 
If the weather is nice and calm, you can lay in your boat about halfway across the lake, and watch groups of Dallsheep grazing on the bare slopes on the other side.