Not really open after Sept. 3 unless Rangers feel like opening it. Since understaffed they don't want the work. Website says open actual fact it is not.
Best things
1. Just 90 min away from Vancouver
2. Deer lake few steps away
3. Well maintained Good size campgrounds
4. Park Service rangers available at site
5. Anything near is minimum 7 kms away in Harrison or in Agassiz.