The Japan Rail (JR) Pass offers unlimited rides on the majority of the JR national network, but it comes with several notable exclusions in 2026. You can ride as many JR-operated Shinkansen, limited express, and local trains as you like within your 7, 14, or 21-day window. However, the fastest "Nozomi" and "Mizuho" Shinkansen services are not fully included; to use them, pass holders must purchase a separate "Nozomi/Mizuho Supplement Ticket" for each leg of the journey. Additionally, the pass does not cover city subways (like the Tokyo Metro or Osaka Metro) or private railway lines (such as the Odakyu or Tobu lines used for Hakone and Nikko). While it includes the Tokyo Yamanote loop and the Miyajima Ferry, 2026 travelers should be aware that the significant 2023 price hike means you now need to travel very long distances (e.g., Tokyo to Hiroshima and back) just to break even on the "unlimited" value of the pass.