Originally Posted by
blitzen
...I contacted guide organizations and are working with the guides on itineraries and they all were pretty knowledgeable...
There are so many non-profit organizations in Japan, often hear NPO on Japanese media. There are so many different level from top to bottom. How do you know the organization you contacted has very good reputation? How do you know that they are knowledgeable with accurate information? Because they say what you want to hear?