I m travelling to Nagano and will be taking the nakasendo trail from 13 to 15 April. I am interested to do hiking in kamichochi coming from Matsumoto on 16 April. I understand the opening to the park is on 17 April but the official website stated the opening ceremony on 27 April 19. Is there something I missed on the official information about the opening date? Thank you.
There are two dates for the opening of Kamikochi: one date for when the bus begins running, and another date for when all of Kamikochi’s facilities begin running. The bus begins running in mid-April, usually around the 16th or 17th, but until the official opening ceremony on April 27th none of the facilities at Kamikochi will be open.
If you want to travel to Kamikochi between the 17th to 27th, please make sure to bring everything you will need for your visit including food and water.
I hope that helps answer your question.