Cross the street slowly and predictably
Waiting for a gap in Hanoi traffic means waiting forever. Step off, walk slowly and steadily without stopping or darting, and the river of motorbikes flows around you. Locals cross this way all day.
旅行ガイド最終更新 August 19, 2026
Vietnam Travel Guide: Essentials, Local Tips & Mobile Data
Hanoi to Ho Chi Minh City: money, crossing the street, transport, regional seasons, curated traveler tips, and mobile data via eSIM.
Vietnam runs 1,600 kilometers from the rice terraces of the north to the Mekong Delta's floating markets, with Hanoi's old-quarter chaos, Ha Long Bay's karsts, lantern-lit Hoi An and the buzz of Ho Chi Minh City strung along the way.
It is intense, cheap and addictive. The food alone justifies the trip - pho at dawn, banh mi from a street cart, bia hoi on a plastic stool - and the famous motorbike traffic quickly turns from terrifying to hypnotic.
The north is cooler, older and full of limestone; the center is lanterns and beaches; the south is hotter, louder and flavored with the Mekong. Flying the long hops and slowing down in between is how Vietnam stops feeling like a bus schedule. Hanoi, Hoi An and Saigon is a classic first line. Sapa, Phong Nha or the Mekong is the chapter people talk about later.
Eat on a stool. Drink the coffee iced and sweet. Learn to cross the street. The country is intense in the best way, and it has a soft spot for travelers who look like they are enjoying themselves.
基礎知識
Vietnam の旅の基礎知識
- 通貨
- Vietnamese Dong (VND). Cash is king outside hotels and malls; note the zeros - 100,000 VND is about 4 USD.
- 言語
- Vietnamese. English is common in tourist areas, less so in the countryside.
- コンセント
- Type A / C / G mixed, 220V.
- 緊急番号
- 113 (police), 115 (ambulance)
- ベストシーズン
- Seasons differ by region: roughly October to April for the south, March to April and October to November for the north.
- チップ
- Not expected; rounding up or small notes for guides and spa staff is appreciated.
- タイムゾーン
- ICT (UTC+7)
- 水道水
- Drink bottled or filtered water.
- 移動手段
- Grab (car and motorbike) is cheap and ubiquitous in cities. Overnight trains and sleeper buses cover long distances; domestic flights are inexpensive.
- インターネットとカバー範囲
- Fast, cheap 4G/5G in cities and towns; solid coverage along the whole tourist trail.
旅人のコツ
旅人からのコツ
Vietnam を訪れた人の実体験を、出典リンク付きで当社が厳選しています。
Use Grab to calibrate prices
Grab's fixed fares tell you what rides actually cost, which arms you for negotiating with any taxi or xe om elsewhere. For metered taxis, stick to Mai Linh and Vinasun brands.
Eat at places that do one dish
The best Vietnamese food comes from spots that make a single thing - one pho shop, one banh cuon stall - often for decades. A short or nonexistent menu and low stools are the quality signals.
Train over the tourist bus when you can
The Reunification Express is slower than a flight and more human than an overnight sleeper bus. Book a soft berth, bring snacks, and watch the country go by. For the long north–south hop, fly and save the train for a scenic segment.
Cash in small notes, always
A 500,000 dong bill is a burden at a pho stall. Withdraw from Vietcombank or a big-bank ATM, ask for smaller denominations, and keep a stack of 20s and 50s for street food, tips and the woman with the fruit basket.
よくある質問
Vietnam の旅の疑問に答える
Should I buy a SIM at Hanoi or Ho Chi Minh City airport, or use an eSIM?
Airport SIM counters in Vietnam are cheap by global standards but still pricier than city shops, and they need your passport for registration. An eSIM skips the queue and paperwork - you land with working data and go straight to the Grab pickup zone.
Does my phone support eSIM in Vietnam?
Yes for unlocked iPhone XS and newer, Pixel 3 and newer, and Galaxy S20 and newer. Vietnam's networks work well with modern international phones.
How much data do I need for two weeks in Vietnam?
Grab, translation, maps and booking apps put most travelers at 1-2 GB per day, so 15-20 GB fits a two-week trip. Data in Vietnam is inexpensive, so oversizing the plan costs very little.
Is there mobile coverage in Ha Long Bay and Sapa?
Towns and the tourist trail are well covered with fast 4G. Expect signal to thin out on Ha Long Bay cruises once you are far from shore and in the valleys around Sapa on treks - download offline maps for those days.
Do I need a Vietnamese phone number for Grab?
No - Grab works with your home number, as the app verifies by SMS or call to your existing account and then runs entirely on data. That is exactly why a data eSIM covers everything most travelers need in Vietnam.
eSIM プラン
Vietnam でつながる
Grab bookings, translation apps and train tickets make data the most useful thing in your pocket in Vietnam. An eSIM activates before you land in Hanoi or Ho Chi Minh City and costs less than an airport coffee.
Grab, Google Translate and a pin in an alley with no street number: Vietnam runs on data. An eSIM is cheaper than the airport SIM and means your first xe om is a tap, not a negotiation in arrivals.
