HUNTSVILLE, Ontario (Reuters) – Contingency Plan 32 would remove any conceivable projectile, even decorative rocks, from the streets of Huntsville, Ontario, a posh lake-district resort town where Canada will host the G8 summit of world leaders later this month.

"The security folks will just phone us and say 'Plan 32, roll, get rid of all that stuff', because the risk assessment has gone up, we know somebody's coming that could be a problem," Huntsville Mayor Claude Doughty told Reuters from offices overlooking pleasure boats and bronzed vacationers.

It's a plan Doughty hopes will never be needed, but also one that he admits must be ready as his sedate town braces for anti-globalisation protesters determined to disrupt the meeting of the leaders of the rich industrialised world.

Set in the heart of a lake district called Muskoka, a name so associated with leisure that Canada names wooden lounge chairs after it, Huntsville hosts the Group of Eight summit from June 25-27.

The leaders from United States, Canada, France, Britain, Russia, Germany, Italy and Japan, then head to Toronto, a two-hour drive south of Muskoka, for two more days of talks at a Group of 20 summit of industrialised nations and important emerging economies, including China and India.

The summit agendas will focus on the financial crisis that has torn across the globe. As in past summits, the meetings may be a perfect forum for international environmental and anti-poverty campaigners.

The two summits will cost Canada's Conservative government close to C$1 billion ($960 million) for security alone, ruffling the feathers of groups – and opposition parties – who see that as overspending at a time of austerity.

There will be two separate security staffs, one housed in a specially built compound near Huntsville's Deerhurst Resort, where the G8 leaders will meet. The pricey lakeside resort is flanked by a pristine golf course, tennis courts, riding stables and nature trails.

In Toronto, Canada's largest city, part of the financial core will be closed off behind ten-foot fences to prevent access, while an outer security zone will also be closed to protest groups.

"There's a risk. There's always a risk there is going to be a mob scene, or a demonstration is going to get out of hand," Doughty said, adding he's been given no cause for concern yet. Groups have advised authorities of their intention to demonstrate, and while most promise peaceful protests only, Canadians got a taste late last month of how far some activists might go to get attention with the firebombing of a branch of Canada's largest bank, the Royal Bank of Canada.