I love this airport but if your flying internation...

I love this airport but if your flying international like to Qatar, United arab of Emirates, Canada, United states you need to be there about 5 hours early because I was there 4 hours early flying back to Vancouver Canada and there were already boarding business class when I first arrived to the gate and I even didn t take any pit stops. This airport is every big you need to stay with your group or your gonna get lost