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Entry and exit


Guam is an unincorporated US territory. US entry and visa requirements apply. The US administers a strict entry regime. You may be refused entry on arrival if you don't comply with entry requirements. 

Visa and other entry and exit conditions (such as currency, customs and quarantine regulations) can change at short notice. Contact an Embassy or Consulate of the United States for up-to-date information, even if you only plan to transit Guam.

More information: Travel advice for the United States of America

Other formalities

Some airlines may not allow unaccompanied children to travel on flights to, from or transiting Guam. Check with your airline.

Children travelling alone, or with one parent/guardian, need to carry a notarised letter of consent for travel signed by the non-travelling parent(s) or guardian.

The US has specific requirements regarding locks used on airline baggage. More information: Transportation Security Administration

Yachts must clear Customs and Immigration in Guam at Apra Harbour. Contact US Customs and Immigration for clearance before entering the harbour, well in advance of entry. Fees apply if arriving after 5:00pm or at the weekend.

  • Customs can be contacted on: 671 472 8426 or 671 642 8071 (airport)
  • Immigration can be contacted on: 671 472 7265 or 671 642 7611 (airport)
  • Port control can be contacted on Channel 13.


Ensure your passport is valid for at least six months after the date you intend to return to Australia.

Your passport is a valuable document and attractive to criminals who may try to use your identity to commit crimes. Always keep it in a safe place.

Be aware of attempts to get access to your passport by deception.  If you are forced to hand over your passport, contact the Australian Embassy​ for advice.

If your passport is lost or stolen, you must notify the Australian Government as soon as possible.


The US Dollar (USD) is the official currency of Guam. Declare cash of USD10,000 or more on arrival and departure, including notes and coins, money orders, cheques and travellers cheques.

ATMs are widely available and credit cards accepted at many establishments.

Safety and security


Petty crime, including drug and alcohol-related crime, occurs in Guam. Use common sense, as you would in Australia.


Terrorism is a threat throughout the world. 

The US National Terror Advisory System operates in Guam. Read the United States of America travel advice.

More information:

Local travel

Tours and adventure activities

The safety standards you might expect of transport and tour operators, including for adventure activities such as scuba diving and yachting, may not be met. Sufficient safety equipment may not be provided, and recommended maintenance standards and safety precautions may be ignored.

  • Use only reputable transport and tour operators.
  • Check operators' credentials and safety equipment before booking.
  • Ensure your insurance policy covers you for all your activities. Understand the limitations and conditions on your insurance cover.
  • Always use available safety equipment, such as lifejackets or seatbelts, even if others don't.
  • If appropriate safety equipment is not available, use another provider.

Road travel

Roads may become slippery after rain. Driving can be dangerous at night due to poor lighting and conditions. Drive with caution.

  • Check you have adequate insurance cover before driving.
  • Familiarise yourself with local traffic laws and practices before driving.
  • Drive defensively and legally.
  • Avoid 'road rage' - don't react to poor driving practices of other drivers.
  • If you're involved in a road accident as a driver, don't leave the scene or move your vehicle until the police have attended.

More information: Road safety and driving

​Driver's licence 

To dri​​ve you'll need a valid Australian licence and an International Driver Permit (IDP). Driving without an IDP could void your travel and vehicle insurance.


Check with your travel insurer whether your policy covers you when riding a motorcycle. Wear, and ensure your passenger wears, a correctly fastened and approved helmet.


Only use registered taxis and authorised limousines, which can be arranged through your hotel. Ensure the meter is used.

Public transport

A public bus network operates a limited service on the island. Services do not operate on Sundays or holidays.

More information: Guam Regional Transit Authority

Sea travel

Cruise vessels stop over in Guam. See our Cruises page for more information.

Yachts must clear customs and immigration at Apra Harbour. See Entry and exit.

Air travel

US Naval and Air Force bases are located on Guam. Guam International Airport may be closed by authorities without notice for security reasons.

The Australian Government doesn't provide information on the safety of individual commercial airlines or flight paths. See the Aviation Safety Network website for information on aviation safety in Guam.

More information: Air travel


You're subject to local laws and penalties, including those that appear harsh by Australian standards. Research local laws before travelling, especially for an extended stay.

If you're arrested or jailed, the Australian Government will do what it can to help you under our Consular Services Charter. But we can't get you out of trouble or out of jail.

Drug laws

Penalties for drug-related offences, including marijuana use, are severe and include minimum mandatory terms of imprisonment. 

More information: Carrying or using drugs

Australian laws

Some Australian criminal laws apply overseas. If you commit these offences, you may be prosecuted in Australia. Laws include those relating to:

  • bribery of foreign public officials
  • child pornography
  • child sex tourism
  • female genital mutilation
  • forced marriage
  • money laundering
  • terrorism.

More information: Staying within the law​

Dual nationals

The US recognises dual nationality. If you're an Australian-US dual national, by law, you'll need to travel with both passports and use your US passport to enter and exit the US, including Guam.

If you're a dual national, read advice on the US Department of State's Bureau of Consular Affairs website before you travel.

More information: Dual nationals


Travel insurance

Take out comprehensive travel insurance before you depart to cover overseas medical costs, including medical evacuation.

Remember, regardless of how healthy and fit you are, if you can't afford travel insurance, you can't afford to travel. The Australian Government will not pay for your medical expenses overseas or medical evacuation costs. This can be very expensive and cost you many thousands of dollars upfront.


  • what circumstances and activities are and are not covered under your policy
  • that you are covered for the whole time you will be away.

More information: Travel insurance

Physical and mental health

Consider your physical and mental health before travelling, especially if you have an existing medical condition.

  • At least eight weeks before you depart, see your doctor or travel clinic for a basic health check-up, and to discuss your travel plans and implications for your health.
  • Get vaccinated before you travel.

More information:


Not all medications available over the counter or by prescription in Australia are available in other countries. Some may even be illegal or a controlled substance, even if prescribed by an Australian doctor.

Before you leave Australia, check if your medication is legal in each place you're travelling to and find out if any quantity restrictions or certification requirements apply. Consult your doctor about alternatives well in advance of travel

Keep your medicines in their original packaging. Always carry a copy of your prescription and a letter from your doctor stating what the medicine is, how much you'll take and that it's for personal use only.

More information: Prescription medicines

Health risks

Dengue fever and other mosquito-borne illnesses are present. Protect yourself against mosquito-borne illnesses:

  • ensure your accommodation is mosquito proof
  • take measures to avoid insect bites, including always using insect repellent and wearing long, loose-fitting, light-coloured clothing.

More information

Medical facilities

The standard of medical facilities and care in Guam is similar to Australia.

Medical costs are extremely high. A visit to the doctor for even minor complaints can cost several hundred dollars. Payment is usually required up front unless you can provide proof of valid health insurance or your ability to pay.

If you become seriously ill or injured, you may need to be evacuated. Medical evacuation can be very expensive. The limited number of flights out of Guam can cause delays.

There are two hyperbaric (decompression) chambers. Both are maintained to a high standard.

Natural disasters

You could encounter tropical storms, typhoons, earthquakes and tsunamis in Guam.

If there is a natural disaster or a warning is issued:

  • secure your passport in a safe, waterproof location or carry it on you at all times (in a waterproof bag).
  • closely monitor local media and other sources such as the Global Disaster Alert and Coordination System
  • follow the advice of local authorities
  • contact friends and family in Australia with regular updates about your welfare and whereabouts.

Tropical storms and typhoons

Guam experiences tropical storms and typhoons throughout the year but most occur from June to December, typically peaking in August. Tropical storms and typhoons can cause flooding, landslides and disruptions to services. The direction and strength of typhoons can change with little warning.

If there is a typhoon or severe tropical storm, you may not be able to leave the area: flights in and out of affected areas could be delayed or suspended and available flights may fill quickly. Access to sea ports could also be affected. In some areas, adequate shelter from a severe cyclone may not be available for all those who stay.

Stay up-to-date on weather conditions and forecasts, typhoon watches and warnings throughout your stay. Monitor the World Meteorological Organisation Severe Weather Information Centre, the Joint Typhoon Warning Centre and the Global Disaster Alert and Coordination System.

If a typhoon or severe storm is approaching, follow the advice for natural disasters above and:

  • ensure you know your hotel or cruise ship evacuation plans
  • identify your local shelter
  • always carry your passport (in a waterproof bag) or secure it in a safe, waterproof location.

More information: Severe weather


Guam experiences earthquakes.​

More information: Earthquakes

Where to get help

Depending on what you need, your best option may be to contact your family, friends, airline, travel agent, tour operator, employer or travel insurance provider. Your travel insurer should have a 24-hour emergency number.

Emergency phone numbers

  • Fire: 911
  • Medical emergencies: 911
  • Criminal issues, contact police: 671-475-8498

Always get a police report when reporting a crime.

Tourism services and products

For complaints relating to tourism services or products, contact your service provider directly.

Australian Government

Read the Consular services charter for what the Australian Government can and can't do to help you overseas. Australia doesn't have an Embassy or Consulate in Guam. For consular assistance, contact the Australian Embassy, Pohnpei, in the Federated States of Micronesia.

Australian Embassy, Pohnpei 

H & E Enterprises Building
Pohnpei, Federated States of Micronesia
Telephone: (691) 320 5448
Facsimile: (691) 320 5449
Facebook: Australia in Micronesia

Check the Australian Embassy website for information about opening hours and temporary closures that may affect service provision.

If you're unable to contact the Embassy in a consular emergency, contact the 24-hour Consular Emergency Centre in Canberra on +61 2 6261 3305, or 1300 555 135 within Australia. ​

Additional information

Additional resources