Campers cannot possess or consume liquor during the Victoria Day long weekend in Banff, Yoho and Kootenay national parks. (CBC)

Campers are banned from possessing or drinking alcohol in Banff, Yoho and Kootenay national parks this May long weekend.

Parks Canada is banning booze from May 21 at 7 a.m. MT to May 24 at noon in front-country campgrounds in the national parks.

The ban comes after complaints about rowdy campers, and follows the lead of provincial parks in Alberta.

"It's a response to visitor feedback and complaints and we're following through, taking some steps here to hopefully provide everybody with a great experience," said Heidi Perren, prevention co-ordinator for Banff, Yoho and Kootenay national parks.

Park wardens and RCMP won't be allowing anyone into the campsites with alcohol. They can search vehicles and vacationers found with booze will be told to turn around or dispose of their alcohol, she added.

Consequences of violating the alcohol ban can include:

• Seizure of alcohol.
• Permit cancellation.
• Eviction from the campground.
• Charge under the Canada National Parks Act or provincial regulations.