8 things first-time cruisers should know before boarding

Seasoned cruisers told Business Insider what first-timers need to know before stepping on a ship. The advice covers packing, booking, and planning.

First-time cruisers face a steep learning curve. The ship is a floating city. You sleep, eat, and travel on the same vessel. The logistics alone can trip up even experienced travelers.

1. Book excursions through the cruise line for your first trip.

Independent operators often offer cheaper tours. The convenience of booking through the ship matters more for a first cruise. If your independent tour runs late, the ship leaves without you. The cruise line guarantees you will make it back before departure if you book through them.

2. Pack a carry-on with essentials for the first day.

Checked luggage can take hours to reach your cabin. Pack a small bag with swimwear, medications, a change of clothes, and any toiletries you need immediately. You can hit the pool or explore the ship while you wait for your bags.

3. Make dinner reservations before you board.

Main dining rooms fill up fast. Specialty restaurants book out weeks in advance. Reserve your preferred dining times and restaurants as soon as the cruise line opens bookings, usually 60 to 90 days before sailing.

4. Bring a power strip without a surge protector.

Cruise ship cabins have limited outlets. Surge protectors are banned on most lines because they can interfere with the ship's electrical system. A basic power strip with multiple outlets and USB ports solves the problem.

5. Download the cruise line app before you leave home.

The app handles everything from daily schedules to dinner reservations to onboard messaging. Download it and log in before you board. Cellular service at sea is expensive and slow.

6. Pack a reusable water bottle.

Tap water on cruise ships is safe to drink. Bottled water costs extra. A reusable bottle saves money and keeps you hydrated between meals.

7. Arrive at the port city a day early.

Flights get delayed. Weather happens. If you fly in the morning of embarkation and your flight is canceled, you miss the ship. Arriving the night before gives you a buffer.

8. Do not overpack.

Cruise cabins are small. Storage is limited. You will wear less than you think. Stick to mix-and-match outfits and leave the "just in case" items at home.