Originally Posted by
AlwaysAisle
Odakyu Travel has recently sold travel package aimed at train geek. Such travel package is not unusual in Japan, targeting otaku type.
This tour package is traveling from Wakkanai in Hokkaido (northern most train station in Japan) to Nishi-Ooyama in Kyushu (southern most train station in Japan excluding monorail in Okinawa) in 3 days by encompassing maximum number of different Shinkansen type trains. The trip itinerary is:
For those interested, unfortunately this tour is already sold out.

They missed the opportunity to include the shortest passenger line in Japan, the Shibayama, in Chiba prefecture. The tour guide should be a marathoner who intends to outrun the short trip.