I was participating in my internship in Tokyo. Tokyo is obviously a big city. Despite it being a big city, it is very safe. I was not afraid to walk in the city centre alone after midnight. People are polite in there. It is impossible to move around without subway though. I was placed on Hongo-Sanchome campus. This is a large camous near city centre with a lot of greens, student spots, and even a little pond. This is kind of escape from the hectic environment in Tokyo.

There is a lot to talk about in Tokyo. First and foremost is that you cannot get aroung without IC card (being it either Suica or Pasmo), Since they have shortage it can be downloaded to your phone. Physical card can only be charged with cash and the one in the phone only through card.
The train system is really convenient and clean. On every station you have a map of a line pointing which car to get on for the fastest transfer. This convenience disappears after midnight though. And it only starts at 5am again. So you either go only till midnight or all night. This is something you should also think of when buying flght tickets. Because customs take time, buying a simcard and also getting the IC card.
There are many country excapes around Tokyo that can be reached within 2 hours from the city centre.

So many possibilities. If you have more money you can hop on shinkansen and get basically anywhere. If not highway busses (night busses) are also a convenient option.
I will just name the places and you can find out yourself. At first something that is a bit further and is only worth it as a weekend getaway.
Matsumoto (Nagano) for hiking and nature
Nikko for hiking and shrines
Go to Osaka for like 5 days and do day trips from there (Kyoto, Nara, Nagoya, Kobe)
Hakone for Mount Fuji view
Mount fuji climb (only overnight). You would have to be really prepared for that.
Chiba area for beach and surfing
Day trips include: Kamakura, Enoshima, Mount Takao, hikes in Chiba, Yokahoma for China town, Kurrku fields.
Then there are many things in the city. Museums, galleries, parks, shrines, etc. The list is never ending.

I underwent internship in the University of Tokyo. In Hongo Snachome campus. It is really big campus compared to the one in my home uni. I was in Koshizuka-Shibata laboratory of Meshfree Particle based computational fluid dynamics. My supervisor spoke english well. People in my lab varied, but I could get aroung just fine. Even if they did not speak english, they were kind towards me.

My work tasks were just to create simulations. I was supposed to think of my own reasearch idea. Because I have chemical engineering background I thought I could simulate mixing reactor. My colleage was concerned with the speed of the code. So even in one lab the tasks can very a lot. I had senpai (American girl Rose). She was helping me throughout the internship. And I had meetings with the professor every week.

Just to get around, is the salary enough. But if you want to travel, experience Japan, or taste the food, be prepared to have some financial back up.

Even though Japan is highly advanced, their english skills are not that good. Many professors communicated with their students only through e-mails because their spoken english is really insufficient. In Japan, you only need to know a couple of phrases to get aroung. The more you know, the better of course. Also google translate is a great tool that works also offline. Or DeepL. Depending on your preferences.
In my lab I had nice leaders that spoke english really well.

The accomodation was paid by my employer. It was a shared house. The one I was at was pretty clean. It was cleaned twice a week.

Since I arrived to tokyo really late, they only picked me up from hotel the morning after. They helped me get my IC card, my sim-card. They showed me everything I needed (thank you so much Sae and Yusuke). They showed where to buy everything I needed. and what things are the best. Because when you get to the country you cannot even read the alphabet, it really helps when someone says that this is laundry detergent and this is coffee.
Then my contact person (Ryo) took me to the campus and then Yuki showed me around campus. Much appreciated.
Takashi's help is also much appreciated.
IAESTE organised 3 events while we were there. That was a chance to meet members of IAESTE Japan as well as trainees.
Then they created a whatsapp group. There we could create our own meetings. And let me tell you, we did!!

As I mentioned above, we had a chance to meet trainees in the 3 events organised by IAESTE Japan.
Other than that we could meet as foreigners whenever we wanted. I made a lot of friends in the group of trainees.

Every time they took us somewhere, we had a chance to do something traditional for Japan. Or try Japanese food. The gym in the campus was really cheap. So make sure to check that out. There is also a pool and a boulder.

I mean you will find local dishes all around. Ramen, tempura, soba noodles, sushi, etc. You have to try natto though! I don't think you will like it, but it is a must try.

I was in touch with a Patricia Holigova. And I was asking her all the questions. She was much of a help!

Take a flight that arrives early enough. Don't go during the summer. Take some cash. Don't take much revealing clothes. Make the most out of it. There is high-quality clothes that is cheap. Don't take many clothes with you. And also cosmetics.

Charging adapter and cash.

Professional benefit of being in one of the top universities in the entire world. Meeting many international friends. Experiencing new culture.

i got a contact person that answered all of my questions. And throughout we had a shared whatsapp group where we could ask everyone and someone would answered. When it comes to professional setting I had e-mail adress of my professor so if I had any questions I would have had them answered.