No.45614 クルーズ旅行に詳しい方、I94について Res.1 by 無回答 from 無回答 2026-09-01 20:04:46 CA As a Japanese citizen boarding a cruise in Vancouver with a first stop in the United States (San Francisco), you do need an approved ESTA (Electronic System for Travel Authorization).Required Travel DocumentsValid Passport: Must be valid for at least 6 months beyond the end of your cruise.Approved ESTA: Japan is part of the U.S. Visa Waiver Program. Even though you arrive by sea rather than air, an approved ESTA application is required to enter the United States. Apply online at least 72 hours before departure.