We organize monthly tour to major tourist destinations. Local Japanese and foreigners get together and ride on a bus that will take you to Michelin 3 star winning Mt. Takao.
You can learn Japanese cultures and make friends with a lot of active Japanese folks!
Sign in/see details from the link, or message me if you have any questions.
http://khaosan-tokyo.com/tour/bus/
*you may be asked where you stay, but just mention "it's through the Explorer" then you are all good :)