1. Get your passport, credit or debit card ready, and read the help document. To complete the form, you will need your passport, a credit card, and an email address.You must also answer a few questions. In addition to your passport, you may need a travel authorization such as a visa or an Electronic Travel Authorization (eTA) to enter Canada. You must have a valid Canadian passport to take a cruise from the United States. Some of the countries you visit will not permit entry without a passport. Services for Canadians if you're visiting, studying, working or doing business in the Cook Islands. Includes information about coming to Canada. You'll follow the same 3 steps to enter Canada: Step 1. Pre-arrival: Use Advance Declaration or complete a Declaration Card.