All campgrounds in Yoho National Park operate on a first-come, first-serve basis. Arrive early. Long weekends in May, July, August and September and weekends in July and August are the busiest times. When campers pay a fee they are issued a permit as proof of purchase. 

List of camping permits
Permit Required Available at entry gates Available at visitor centres Available at campground kiosks / self-registration booths
Park Pass Required Fee schedule Fee schedule -
Camping Permit  Required - - $17.60 - $21.50
Fire Permit Required, if you have a fire - - $8.80
Fishing Permit Required, if you are fishing $9.80 / day or $34.30 / annual $9.80 / day or $34.30 / annual -

See a complete list of fees.