Cruises are one of the most relaxing ways to travel, but they're also filled with opportunities to overdo it. Rich food, late nights, long excursions, crowded public areas, and hours in the sun can take a toll if you're not prepared.

The good news is that staying healthy on a cruise doesn't require a lot of extra effort. A few simple habits before and during your vacation can help you avoid common problems like dehydration, sunburn, motion sickness, stomach bugs, and exhaustion.

Whether you're sailing for three days or three weeks, these practical tips will help you feel your best so you can spend less time worrying about your health and more time enjoying your vacation.

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1. Wash Your Hands Frequently

One of the easiest ways to stay healthy on a cruise is also the simplest.

Cruise ships welcome thousands of guests from around the world, and everyone shares dining rooms, elevators, handrails, theaters, and other public spaces. Washing your hands with soap and water before eating and after using the restroom remains one of the most effective ways to reduce your risk of getting sick.

Most cruise lines also provide hand sanitizer throughout the ship. While it's helpful, washing with soap and water is generally the better option whenever possible.

2. Stay Hydrated

Between warm weather, sightseeing, alcoholic drinks, and long days exploring ports, it's surprisingly easy to become dehydrated.

Drink water throughout the day—even if you don't feel thirsty. If you're spending several hours ashore, bring a refillable water bottle whenever possible and remember that coffee, soda, and alcoholic beverages shouldn't replace water.

Staying hydrated can also help reduce fatigue, headaches, and overheating during your vacation.

3. Protect Yourself From the Sun

Many cruise destinations enjoy beautiful sunshine year-round, but spending hours outdoors can quickly lead to painful sunburn or heat exhaustion.

Apply sunscreen before heading ashore, wear sunglasses and a hat when appropriate, and seek shade during the hottest part of the day if you're spending extended time outside.

Even on cloudy days, UV rays can be surprisingly strong—especially near the water.

4. Get Enough Rest

Cruise vacations can be exciting, but they can also be exhausting.

Between early morning excursions, late-night shows, long walks through port cities, and busy embarkation days, it's easy to wear yourself out without realizing it.

If you're feeling tired, don't feel guilty about taking a short afternoon break or turning in early. A little extra rest can help you enjoy the rest of your cruise much more than trying to push through exhaustion.

5. Be Smart About Food Safety

Cruise lines work hard to maintain high food safety standards, but it's still important to use common sense.

Choose food that's being served hot, avoid leaving buffet items sitting at your table for extended periods, and wash or sanitize your hands before eating.

If you have food allergies or dietary restrictions, notify the cruise line before you sail and speak with the dining staff once you're onboard. Most cruise lines do an excellent job accommodating special dietary needs.

6. Take Steps to Prevent Motion Sickness

Even experienced cruisers can occasionally experience motion sickness, especially during rough seas.

If you're prone to motion sickness, consider packing medication, acupressure wristbands, or other remedies before your cruise. Booking a mid-ship cabin on a lower deck may also help reduce the feeling of movement.

The key is to prepare before symptoms begin rather than trying to treat them after you already feel sick.

👉 Read our complete guide: 7 Ways to Prevent Seasickness on Your Next Cruise.

7. Pack Your Medications Carefully

Bring enough prescription medication to last your entire trip, plus a few extra days in case your travel plans change.

Keep medications in their original labeled containers and pack them in your carry-on bag rather than your checked luggage.

It's also a good idea to bring a copy of your prescriptions and keep a list of your medications with you while traveling.

👉 Related: What Happens If You Forget Your Prescription Medication on a Cruise?

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8. Know Where the Medical Center Is

Hopefully you'll never need it, but it's always a good idea to know where the ship's medical center is located.

Cruise ships have trained medical staff who can treat many common illnesses and injuries, including minor infections, dehydration, seasickness, allergic reactions, cuts, and other non-life-threatening conditions.

If you have a chronic medical condition or specific health concerns, familiarize yourself with the medical center's location early in your cruise so you know exactly where to go if you need assistance.

👉 Related: Do Cruise Ships Have Doctors? Here's What Every Cruiser Should Know

9. Protect Yourself During Shore Excursions

Many cruise ports involve a lot more physical activity than travelers expect.

You'll often spend hours walking on uneven streets, climbing stairs, sightseeing in warm weather, or participating in active excursions.

Wear comfortable clothing, stay hydrated, use sunscreen, and pace yourself throughout the day. If you have mobility concerns or medical limitations, choose excursions that match your comfort level rather than trying to keep up with more strenuous tours.

10. Don't Ignore Symptoms If You Feel Sick

If you begin feeling unwell during your cruise, don't try to "push through it."

Whether it's a fever, persistent stomach illness, severe dehydration, or another medical concern, seeking medical care early may prevent your condition from becoming more serious.

It's also considerate to avoid close contact with other passengers if you're experiencing symptoms of a contagious illness.

Most cruise lines have procedures in place to help guests who become ill during their voyage.

👉 Related: What Happens If You Get Sick on a Cruise?

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