Well, there's something right in my head.
It was when It’s about went on a trip to Japan with my friend last year.
We were going to a sushi restaurant while looking at a map on my phone.
But the Wi-Fi router battery was dead, so we couldn't use the Internet.
We felt strongly had a strong feeling of becoming that we were going to become an international lost child.
But we knew that even if we couldn’t use the didn't have access to the Internet, the map would roughly showed where we were going.
So we looked at it and deduced the direction for about from it for about an hour, and we ended up getting to at the restaurant safely.
And we enjoyed the meal. From this incident, Taking this opportunity, I learned that when I travel, I have to check not only my phone but also my internet router battery a battery of my internet router not only my phone.