The trail begins directly to the left or right (depending on which way you go)
from the sign-in area. We actually made the first mistake of taking a shorter
trail past the sign-in, which wound up directly on the lake. The trail is
approximately 2.5 to 3 miles of doubletrack which loops around Moss Lake.
There is an instersection on the SE part of Moss Lake (left of sing-in) that takes
you to Bubb and Sis Lakes, which is slightly more technical singletrack with
many rocks and roots to challenge you.
Unlike many hikers and previous bikers, we began to ride to the right side of the
sign-in, which turned out to be "against the grain" of the flow of people on the
trail. I felt this turned out to be a good thing, since they could see us coming
and we could see them ahead of time. The train around Moss Lake is very, very
well maintained, and remains mostly dirt with a few spots of mixed gravel for
the duration. There are a few foot bridges for travel over creeks, but these are
wide enough, and built solid enough, for you to ride around hikers, if they let
you. We traveled this route around Moss Lake, and when we reached the
intersection of Bubb/Sis Lake trail, turned southeast onto it. This connecting
trail is singletrack, but still well maintained. The trail to the second set of lakes
has slight elevation gain, but nothing too strenuous. A nice camp site on Bubb
Lake (the first you come to) is a nice place to take a well-deserved break, and
the trail then continues on to Sis Lake. Once we reached the foot bridge that
goes over the small creek connected Bubb and Sis Lakes, we turned back. (If
you were to continue, you could travel the train further, which comes out to
the Sis&Bubb trailhead on Rte. 28). Note that with the amount of rocks and
roots, the second trail to the other lakes is enough to be a small confidence
builder for your biking skills (speed is key, I was told).
Since Moss Lake is popular among hikers, kayakers, fishermen, etc., please keep
a good eye out for them. We came among many around Moss Lake, from
groups to the solo man, however, the second trail was all ours, for which we
took advantage of such on the way back to Moss Lake, as the elevation was all
down! That alone makes this a worth-while ride to consider.