You need to have a valid Parks Canada Pass to enter Jasper that can be bought online. You may get one at a park gate. An adult pass costs $ 10.50, a senior citizen pass costs $ 9 and a family pass of up to 7 costs $ 21. Remember that the day pass expires at 4 PM the following day. Before you plan your vacation, we would recommend checking the website of Jasper National Park to get all the related information.