A little cruise know-how can make for much smoother sailing

• Arrive at your embarkation city early.
  For an international or distant departure, arriving at least a day beforehand provides a cushion against flight delays. The ship isn't likely to wait because your flight was late.

• Keep cruise documents, medication and valuables in your carry-on.
  Checked bags may not arrive at your cabin immediately.

• Pack a swimsuit in your carry-on.
  You can start enjoying the ship while everyone else waits for their luggage.

• Put your phone into airplane mode once you're at sea.
  Otherwise it may connect to a maritime cellular network, which can result in expensive charges. Connect to the ship's Wi-Fi separately if you've purchased a package.

• Check the ship's time—not just your phone.
  Ship time and local port time aren't always the same. Missing a tour is unfortunate. Missing the ship is significantly worse.

• Book the things you really care about early.
  Specialty restaurants, popular excursions, spa appointments and limited-capacity activities can fill up.

• Wash your hands with soap and water.
  Cruise ships bring lots of people together in shared spaces, and gastrointestinal illnesses such as norovirus can spread aboard. CDC particularly recommends handwashing before eating and after using the bathroom or touching frequently handled surfaces.

• Understand what your medical insurance covers at sea and abroad.
  Medical treatment and evacuation can be extremely expensive. CDC advises travelers to understand their existing coverage and consider travel insurance that includes medical care and emergency evacuation.