At the reception site there is ample space for people to park campers. This space is no service (no water, power sewer), but there will be access to a building.
Fourth Creek Hall - 10 minutes from the reception site is a few campsites that have power and access to a bathroom and shower. For information contact (780) 500-6441 . There are limited sites available.
Moonshine Lake Campground is 20 minutes from the reception site and has sites of varying services, including full service. Information can be found here: https://www.albertaparks.ca/parks/north/moonshine-lake-pp/information-facilities/camping/moonshine-lake/
Some friends have also lent their campers for the weekend, please contact Becky or Braden if you would like to be put on a list for these!
Camper rental website if needed: https://www.rvezy.com/rv-search?SearchAddress=Grande%20Prairie,%20AB,%20Canada
There are also numerous hotels in Dawson Creek. BC (75km away).