Another kilometre of strolling is interrupted by some moderate switchbacks that leave the forest and ascend the southwest slope of the Illecillewaet Valley. Tremendous views of Perley Rock and Mount Sir Donald and the amazing waterfalls of the northeast slope of the valley are nothing like you have ever seen before. There is so much water tumbling from these peaks that you wonder how it could possibly continue to fall in such volume all day and all night without stopping.
The path adheres to the hillside, climbing continually upward, passing two small weather-monitoring stations within a kilometre of each other. From the second of these weather stations, another kilometre of uphill strolling brings you to the official, signed end of the route. Cool glacial water runs freely down a rocky slope just beyond the trail’s end.
Beyond here, travel the massive, open rock slabs left behind by the Great (Illecillewaet) Glacier, and venture to its toe. This open region, and the ensuing route, has but one faint track that fades at a large cairn 400 m up the path. This trail is not on any maps. Elevation gained from the end-of-trail marker to the cairns is 139 m. To reach the toe of the glacier, continue, without the aid of trails, another 800 m of distance with an elevation gain of 290 m. To complete this outstanding uncharted journey, work your way up the right (west) side of the ridge to the Glacier Crest summit (N51 14 20.8 W117 28 02.7). The top of the Glacier Crest Trail is an additional 185 m upward.