Route : https://www.wta.org/go-hiking/hikes/mount-st.-helens-worm-flows-route Trip Details Sarah and I did this hike in two days! The first day, we arrived at a lodge in a town called Cougar near Mt. Saint Helens. That evening, we did some easy hikes and explored the Ape Caves. Second day, we woke up pretty early to ascend the route. Going up 5.7K ft is definitely the most I've done in a single day! I didn't have too much weight in my pack though so it didn't feel as hard as doing camp muir with a 45lb pack. I had to use some microspikes and gaiters near the top as it got pretty snow-covered.