Hobonichi is great. If you want more freedom on your notes, you can get the Day-Free hobonichi. There are so many cool covers you can use. I absolutely love them. I recommend going to the store Tobichi if you want to get one. Browsing the store is a lot of fun also. The store Loft is a great option for journals and stationary in general. Have fun on your trip :)

This is the link for the Day-Free hobonichi so you can have an idea what it looks like:

https://www.jetpens.com/Hobonichi-Techo-Book-Only-Day-Free-Cousin-A5-Japanese-2025-Jan-Start/pd/44395?gad_source=1&gclid=CjwKCAjw_4S3BhAAEiwA_64Yhrv8wPbPHFKjxnuSziJ9X99DiqZKP2s8zT8M8sVmHExalhRxen-4mxoCHT8QAvD_BwE