And that is the point isn't it? It looks like you have several interesting hiking trails in Canada and with the exception of ones that go through camp grounds, National or commercial, I don't think they have laundry facilities on the trails or in the more rustic camp sites. But you live there you might know better.

I lived next to a national forest for more than 11 years and have hiked on several trails between Mammoth and Mexico. Today they all take a permit for overnight and most are checked. You cannot camp within 200 feet of streams or rivers. Most have designated camping sites. Are yours different? I hardly overnight anymore however unless it is out with friends in the desert.

https://hikingguy.com/hiking-trails/...gorgonio-hike/

The last three hikes I did were San G. , Mount Baldy and San Jacinto. I now only do day hikes on San Jacinto. It requires a permit for a day hike. None of them have washing machines or showers. So I believe the bloggers are correct, go to the trail head, go into the town and shower and do laundry. It isn't something I would need to make up to anger someone that hasn't tried a trail yet.