You have from time of getting your T4's and other paperwork until April 30.
Give the information to a relative and have them go to your local H&R Block.
If you expect a refund don't worry about it until you are finished, I know people that waited a year to file taxes for a refund without any consequences, other then loaning the government money without any capital gains.
lol
Hell you could always use your laptop, Studio tax and e-file them in under an hour from a free wifi zone thats walking distance from St. Jean mega.