Yes, you are encouraged to keep your carry-on luggage with you during the boarding process on a cruise. Unlike checked bags, which are collected at the pier and may not be delivered to your cabin until late afternoon or evening, your carry-on remains in your possession. This is high-value because it allows you to have immediate access to swimwear, sunscreen, medications, and travel documents. In 2026, cruise lines like Royal Caribbean and MSC have "tightened" carry-on rules to crack down on prohibited items like alcohol and large power banks, but the "carry-on-at-all-times" rule still stands. A premier 2026 tip: keep your boarding pass and passport in your carry-on rather than your checked bag, as you will need them multiple times before you even set foot on the ship's gangway, and having your "first-day essentials" handy ensures you can start your vacation at the pool while others are still waiting for their suitcases.