Paste your trip. In 30 seconds you'll know what to fix, what to book first, and whether you actually need a JR Pass.
Overpacked days. Five things across three neighborhoods looks fine on paper. In practice you spend two hours on trains and arrive at the last place 20 minutes before it closes. Tokyo realistically covers two areas a day. Kyoto is the same. Arashiyama and Higashiyama are opposite ends of the city.
Backtracking. Tokyo to Hiroshima, back to Tokyo, then Kyoto costs an extra ¥20,000 and a full day on trains you didn't need. Move in one direction. The route map shows exactly where you're doubling back.
JR Pass miscalculation. The pass hit ¥50,000 in 2023. Most standard routes don't break even on it anymore. Your actual Shinkansen fares get added up and compared, not guessed from a 2019 blog post.
One-night stops. Check in, sleep, check out. You barely saw the place. Two nights is when a city actually opens up. One-nighters get flagged because staying put and going deeper almost always beats racing to the next stop.
Seasonal blind spots. Golden Week fills every temple path. June rains every day. Sapporo Snow Festival hotels sell out months ahead. Your travel window gets checked against holidays, rainy season, cherry blossom timing, and festival dates.
Late bookings. Shinkansen reserved seats during Golden Week disappear in days. Hakone ryokan are gone months before busy weekends. Popular experiences sell out weeks ahead and don't reopen. You get a booking checklist with urgency levels so you know what to lock down now.
Wrong departure airport. Trip ends in Osaka, flight home leaves Narita. That's a full day on trains going backwards. Kansai International is right there.
You've built an itinerary from blog posts and want to know if the logistics actually hold up before you book anything. Or you used AI to plan the whole trip and aren't sure the routing makes sense. Or your trip is coming up fast and you want to spot problems while you still have time to fix them.
The earlier you check, the more you can act on. Shinkansen reserved seats, popular ryokan, and sold-out experiences get booked weeks or months ahead.
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