The most common tech mistake when traveling is: “I can just open Google Maps once I arrive.” That works great until:

  • You lose signal.

  • Battery hits 5%.

  • The banking app won't load.

  • Your booking won't open.

  • You are standing at a fork in the road in the mountains.

Download offline maps

Before a trip to Binh Lieu or remote areas:

  • Download the map area.

  • Save your hotel.

  • Save the port.

  • Save the bus station.

  • Pin your return point.

Don't just save photo check-in spots. What you need most when trouble arises is your way back, not the next photo op.

Network infrastructure is improving, but don't let your guard down

In 2026, the Hoanh Mo – Binh Lieu area continues to expand 4G/5G coverage at several tourist attractions such as Cao Ly and Cao Ba Lanh, while developing digital tourism maps. This is a positive sign. But “better coverage” does not mean: Every mountainside has signal. When heading to mountainous areas, you should still have an offline plan.

What should you screenshot?

The evening before, take screenshots of:

  • Ferry/boat tickets.

  • Booking QR codes.

  • Hotel name.

  • Phone numbers.

  • Address.

  • Departure time.

  • Port.

  • License plate/pickup vehicle details, if any.

A screenshot is sometimes worth more than 15 travel apps.

Power banks

Bring a power bank with enough capacity for a full day. Especially if you:

  • Take lots of photos.

  • Use GPS.

  • Take a boat.

  • Travel to Binh Lieu.

  • Shoot videos.

If traveling by air, check airline regulations on lithium batteries. For instance, Vietjet currently requires power banks to be carried only in carry-on baggage, never in checked luggage.

Traveling in a group

Never let just one person hold:

  • Bookings.

  • Maps.

  • Tickets.

  • Driver's phone number.

At least two people should have copies.

1 1 2 and hotlines Save beforehand: 112 – National emergency switchboard. And the Quang Ninh tourism hotline if you need to report service issues. Don't wait until something goes wrong to start searching for numbers online.

If traveling to border areas

Online maps do not replace:

  • Signs.

  • Barriers.

  • Instructions from authorities.

A trail shown on a map does not mean visitors are permitted to take it.

Quick checklist

  • Download maps.

  • Screenshot bookings.

  • Pin hotel/port.

  • Fully charge before leaving your room.

  • Bring a power bank.

  • Have two people keep the information.

  • Do not rely entirely on online QR codes.

  • Save 112.

  • Do not follow a trail just because an app shows it.