Hello, this is Ron.
In this blog, “Future Atlas by Ron,” I write realistic travel diaries of the places I have visited based on my experience of traveling to more than 15 countries, as well as my impressions and insights from my travels.
I usually travel on my days off while working full time in Tokyo, and I am active in my efforts to share the charm of international travel with everyone.
What languages are spoken in Guam? Do I need cash? How is the Internet environment?
When you travel to Guam for the first time, you may have endless worries and questions.
In this article, we have compiled a list of frequently asked questions and answers in a Q&A format based on our actual experiences in Guam.
Please refer to it as a reference for your trip planning, as it is all information that you should know before your departure!
👇The entire trip and cost details can be found in the [Guam Trip Summary Article]
- Guam Travel Q&A List
- Q1. Do I need a visa to visit Guam?
- Q2. How much does it cost to travel to Guam?
- Q3: Can I drink tap water in Guam?
- Q4: What voltage and plugs can I use in Guam? Do I need a converter?
- Q5. What are the most popular souvenirs from Guam?
- Q6. Is English spoken in Guam?
- Q7. What is the currency in Guam? Do you accept credit cards?
- Q8. do you have internet access, and what is the Wi-Fi situation?
- Q9. Is there a time difference?
- Q10. Is it difficult to drive a rental car?
- Q11. Do I need to tip?
- Q12. What should I wear? What should I bring with me?
- Q13. how safe is it? Is it safe to go out at night?
- Q14. which area do you recommend staying in?
- Finally
Guam Travel Q&A List

Q1. Do I need a visa to visit Guam?
A. Japanese passport holders do not need a visa for tourist purposes.
However, you will need to apply for ESTA (Electronic System for Travel Authorization).
Please apply online in advance. The application is in English, but agency services are available.
👉 For more information: [Summary of Preparation for Guam Trip].
Q2. How much does it cost to travel to Guam?
A. The standard cost is around $670-1,000 per person, including travel + lodging + meals and sightseeing.
It varies depending on the time of year and style of stay, but for us it was $1,000 per person for 2 days and 1 night.
The following article provides a detailed breakdown of expenses and with real-life episodes.
👉 Reference: [Summary of Guam travel expenses]
Q3: Can I drink tap water in Guam?
A. It is not impossible to drink, but it is not recommended.
Even local people basically buy and drink mineral water.
You can easily buy bottled water at convenience stores and supermarkets, so be sure to always have bottled water on hand during your stay.
Q4: What voltage and plugs can I use in Guam? Do I need a converter?
A. Type A. Voltage is 110V.
High-voltage appliances such as hair dryers need to be checked, but you can charge your phone or camera as is.
However, be careful if you are bringing appliances that are not transformer compatible.
Q5. What are the most popular souvenirs from Guam?
A. Chocolate, macadamia nuts, cosmetics, and local goods are standard items.
👉 For more information, click here: [Guam Shopping Guide]
Q6. Is English spoken in Guam?
A. Yes, English is the official language.
English is understood without problems at tourist spots, hotels, and restaurants.
Some store clerks can speak simple Japanese, but the basic language is English.
If you are worried, it is convenient to install a translation application.
Q7. What is the currency in Guam? Do you accept credit cards?
A. U.S. dollars (USD). Credit cards are widely accepted.
Visa and Mastercard are almost always accepted at major establishments.
However, since cash may be required for food stalls, local markets, and tips, it is a good idea to have $20-$50 in small bills ready.
Q8. do you have internet access, and what is the Wi-Fi situation?
A. Wi-Fi is available at the airport, hotels, and some cafes, but is weak in town.
If you need a comfortable Internet environment, we recommend renting a Wi-Fi router or preparing a SIM card in Japan.
LINE calls and SNS postings can also be made without stress.
👉 For more information: [Summary of Preparation for Guam Trip].
Q9. Is there a time difference?
A. The time zone is one hour ahead of Japan.
For example, if it is 12:00 PM in Japan, it is 1:00 PM in Guam.
You will hardly have to worry about jet lag.
Q10. Is it difficult to drive a rental car?
A. Beginners can do it! However, be careful to drive on the right side of the road.
Guam is the opposite of Japan, where traffic is on the right side of the road. It is a little confusing at first, but the roads are wide and easy to drive on.
Japanese drivers do not need an international driver’s license; a Japanese driver’s license and passport are all that is required.
👉 For more information: [Summary of tips and precautions for driving a rental car in Guam]
Q11. Do I need to tip?
A. Basically, it is not necessary, but depending on the service, it is a good impression to give.
In restaurants, a service charge of 15-20% is often added to the bill, and a tip beyond that is unnecessary.
It is good manners to give $1-$2 to hotel porters and bed-makers.
Q12. What should I wear? What should I bring with me?
A. Always summer all year round! Summer clothes and sun protection are a must.
Swimwear, hat, sunglasses and sunscreen (locally available) are essential.
Folding umbrellas and mackintoshes are also recommended to protect against squalls.
👉 For more information: [Summary of advance preparations for a trip to Guam].
Q13. how safe is it? Is it safe to go out at night?
A. Basically it is safe, but avoid walking alone at night.
Tourist areas are safe with plenty of police, but be careful in dark alleys and unpopular places.
It is also safer to take out travel insurance.
Q14. which area do you recommend staying in?
A. The Tumon area is recommended!
Of the North, South and Tamuning areas, the Tumon area is packed with Guam’s tourist attractions! So it is safe and sightseeing can be done on foot. There are many hotels directly connected to the famous Tumon Beach, so it is a good idea to consider hotels in the Tumon area first.
👉 For more information: [Review of hotels stayed in Guam]
Finally

Guam is one of the few overseas destinations that is close to Japan and where the language and food hurdles are low.
However, you can enjoy it more safely and comfortably by keeping information in mind beforehand!
We hope that the Q&A in this article has helped to alleviate some of your concerns about travelling to Guam.
Please take a look at the summary article as well!
>>【Travel to Guam Summary Article】
🔗 Related Links
- [Summary of tips and cautions for driving a rental car in Guam]
- [United Airlines Flight Experience Review]
- [Detailed article on advance preparation]
- [Guam Basic Infomation]
- [Detailed cost information] [Coming soon]
- [Travel Diary of Day 1] [Coming soon]
- [Travel Diary of Day 2] [Coming soon]
- [Guam Gourmet Guide]
- [Guam Shopping Guide]
- [Guam Hagatna Guide]
The atmosphere of this trip and what I felt on the ground is left in a video on
YouTube.
Rather than a record, I would be happy if it could be a trigger for someone else’s journey.
▶︎ YouTube ‘UYUTABI’ channel here
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