Loop lines
Quicky: there are train lines that run in a loop in Ōsaka and in Tōkyō. Although the subway network appears more useful in the latter, you cannot travel with that for free with a JR pass.
Quicky: there are train lines that run in a loop in Ōsaka and in Tōkyō. Although the subway network appears more useful in the latter, you cannot travel with that for free with a JR pass.