Alaska cruise health prep: vaccines, cold, motion and remote ports

Alaska cruises are less about tropical diseases and more about cold, wet weather, active excursions and long distances from hospitals. Many Alaska sailings also call at Canadian ports such as Victoria or Vancouver, so Canada’s CDC page is worth a look too.

General information only; talk to your doctor about your own needs.

Vaccines

For Canada, the CDC lists (CDC: Canada):

• Routine vaccines, up to date before every trip (MMR, chickenpox, tetanus-diphtheria-pertussis, polio, flu, shingles).
• Measles: all international travelers should be fully vaccinated (global measles notice).
• COVID-19: all eligible travelers up to date.
• Hepatitis A: consider for most travelers. In June 2026 CDC posted a Level 1 notice about a hepatitis A outbreak in Manitoba.
• Hepatitis B: recommended for unvaccinated travelers under 60.
• Yellow fever: not recommended or required.

The CDC’s cruise chapter stresses that all cruise passengers should be up to date with routine vaccines, because outbreaks of vaccine-preventable diseases such as flu, chickenpox and measles have occurred on ships. It also notes that flu can circulate on ships year-round, and recommends this season’s flu vaccine at least 2 weeks before travel for those who haven’t had it (CDC Yellow Book: Cruise Ship Travel).

Cold, wet weather and layering

The CDC’s advice for cold locations is to dress in layers and cover your head, hands and feet (CDC: Canada). On glacier-viewing days, open decks can be windy and cold even in summer. Pack:

• Waterproof jacket and warm mid-layer
• Hat, gloves and warm socks
• Non-slip shoes for wet decks and trails

Slips, trips and falls account for 12–18% of visits to ship medical centers (CDC). Good footwear helps.

Sun on snow and water

It’s easy to forget sunscreen in a cool climate. The CDC notes that sunlight reflects off snow and water, increasing sun exposure, and recommends sunscreen of at least SPF 15 plus protective clothing (CDC: Canada). Sunglasses and lip balm with SPF are worth packing (CDC lists lip balm with sun protection in its travel health kit).

Seasickness

Inside-passage waters can be calm, but open-water stretches can be rougher. Seasickness affects up to 25% of cruise travelers (CDC). See seasickness options compared and talk to a pharmacist before you go.

Excursions and outdoor activities

Alaska excursions can include hiking, kayaking and small-plane trips. CDC general advice:

• Watch changing weather and adjust plans.
• Carry bug spray, sunscreen and a basic first aid kit on outdoor trips.
• Always wear a life jacket on small boats.
• Don’t approach or feed wildlife; wash any bite or scratch and seek care (CDC: Canada).

Remote ports and evacuation

The ship’s medical center can stabilize many problems, but conditions needing a hospital may require transfer ashore, and the CDC notes ship-to-shore evacuations can be logistically challenging (CDC). Check whether your insurance covers medical evacuation, especially from remote areas. See travel insurance vs. medical evacuation cover.

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Alaska cruise health checklist

• Routine vaccines, flu and COVID-19 up to date
• Check the CDC page for any Canadian ports
• Layers, waterproofs, non-slip shoes
• Sunscreen, sunglasses, SPF lip balm
• Seasickness plan agreed with your pharmacist
• Medicines plus extras in your carry-on
• Insurance with medical evacuation

Sources