Head down the Sommets Trail (blazed in pink and white) from Pic Johannsen. You're now on your way to connecting between Johannsen and Tremblant peaks. At one point along this trail, maybe 3/4 mile, you'll come to a clearing where you'll be able to see Tremblant Peak, and a gully. From here you'll have to make your way down to get to the peak. Note, at this opening the trail is across the field and to the right side.