Japanese popular sightseeing spots in Kanto area is Tokyo, Kamakura, Hakone, Mt.Fuji ,Nikko and so on.
However, Chiba area has many little known places.
Naritasan Shinsyoji temple
Mt.Nokogiri is around 3 hours from hotel in Tokyo by train and from the top of Mt. Nokogiri, you can have a splendid panoramic view of Tokyo Bay and Boso Peninsula.
Also, Naritasan Shinsyoji temple is near Narita airport, if you have minimum 3 hours before your flight at Narita airport, you can visit Naritasan Shinshoji temple and experience Japanese culture. Use your last several hours in Japan effectively!
If you have a interest, please see the tour detail page.