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Before You Go

Health Insurance

No matter how long or short your trip, make sure you have adequate travel insurance, purchased before departure. At a minimum, you need coverage for medical emergencies and treatment, including hospital stays and an emergency flight home if necessary. Medical treatment in the US is of high caliber, but the expense could bankrupt you.


  • Hawaii State Department of Health ( General healthcare information in the state.
  • Hawaii Medical Service Association ( Physician finder.

Recommended Vaccinations

No vaccinations are required for a trip to Oʻahu.

In O‘ahu

Availability & Cost of Health Care

There are good medical clinics across Oʻahu. As is the case anywhere in the US, the quality of health care is high – and so is the price. Make sure to purchase travel insurance before you visit.

Infectious Diseases

Oʻahu reports a small outbreak of dengue fever every few years, but the number of cases has never been more than four. The last outbreak was in 2015. The best prevention is to avoid mosquito bites.

Environmental Hazards

The greatest environmental hazard on Oʻahu is the water that surrounds it. Hawaii suffers from one of the highest rates of drownings in the country, and on Oʻahu, many beaches don't have lifeguards. Always be aware of the tides and currents, and if you're not a confident swimmer, stay close to shore.

Tap Water

The tap water on Oʻahu is safe to drink.

Medical Services

Large chain pharmacies and smaller local pharmacies can be found across Oʻahu. Hospitals are centered in Honolulu, but clinics can be found island-wide.