In Canada, is international volunteer work tax deductible like in the US?

I'm looking at volunteering next year in Cambodia or Tanzania and the organization I'm currently reading about claims that all volunteer expenses (including airfare, accommodations, etc) are 100% tax deductible in the US. I've tried to find information online about Canada's volunteer tax deductions but I haven't been successful. Just wondering if anyone out there knows if/what any options for Canadians wanting to volunteer abroad are! Thanks.