Both HI hostels are not located i Jasper, so you may as well continue out to Athabasca Falls as it is much better out of the two. Only a few dorm rooms (log cabin style) with about 20 beds or so in each. Rooms have heating and linen is provided. Toilets are outside (composte style) and there are no showers. Kitchen is simple but stock up before coming and you will be fine. The manager is quite particular so make sure you do your dishes and dont leave anything lying around! There is a lovely fireplace inside and when there is enough people they have a campfire.
A torch is helpful here.
If you want simple and back to nature this is a lovely place. more