2026 Tokyo–Hakone–Karuizawa–Fuji 7-Day Itinerary + Japan eSIM
This Tokyo Hakone Karuizawa Fuji itinerary packs four prefectures into one loop, and that is the whole reason to do it this way. Start in the neon grid of Tokyo, soak in the hot springs of Hakone, wake up facing Mt. Fuji at Lake Kawaguchiko, then climb into the cool highland air of Karuizawa. On a map it looks like a wide circle out of the capital; on the ground you cross Tokyo, Kanagawa, Yamanashi and Nagano in a single week. A pure Tokyo trip gives you one mood. This route gives you four — and they are all within a couple of hours of Tokyo Station.
Why this loop is worth crossing four prefectures
Most first-time plans park you in Tokyo for a week and call it Japan. You get the city, but you miss how fast it changes once you leave it. Ninety minutes from Shinjuku and you are stepping off a train into sulphur steam at Owakudani. Two hours and you are standing under a torii gate that sits in a lake, with Mt. Fuji behind it. The contrast is the point. Tokyo for the energy, Hakone for the onsen, Lake Kawaguchiko for the mountain views, Karuizawa for the forest and the cool summer air. Seven days, six nights, one Japan eSIM to keep the navigation running the whole way.
7-day itinerary: how to link four prefectures smoothly
The order is not random. Hakone and Lake Kawaguchiko sit close together on the western side, so you chain them. Karuizawa lies north and needs a backtrack to Tokyo Station to catch the Hokuriku Shinkansen, so it goes last. Here is the day-by-day.
| Day | Route highlights | Base area |
|---|---|---|
| Day 1 | Arrive in Tokyo (NEX from Narita / Haneda into Shinjuku); Senso-ji and Kaminarimon in Asakusa, then Shinjuku | Central Tokyo |
| Day 2 | Odakyu Romancecar from Shinjuku to Hakone-Yumoto (about 1.5 hours), mountain railway up to Gora for the onsen | Hakone (Kanagawa) |
| Day 3 | The Hakone golden route in one loop, then move on to Lake Kawaguchiko in the evening | Fujikawaguchiko (Yamanashi) |
| Day 4 | Full day around Lake Kawaguchiko: Oishi Park lavender, Oshino Hakkai, Arakura Fuji Sengen Shrine, Tenjozan Ropeway | Fujikawaguchiko |
| Day 5 | Lake Kawaguchiko to Tokyo Station, transfer to the Hokuriku Shinkansen up to Karuizawa (about 70 min); Kumoba Pond, Old Karuizawa Ginza | Karuizawa (Nagano) |
| Day 6 | Karuizawa: Shiraito Falls, Karuizawa Prince Shopping Plaza outlet, back to Tokyo in the evening | Central Tokyo |
| Day 7 | Shopping in central Tokyo (Ginza, Asakusa), then head home | — |
Hakone: one pass, eight ways to ride
Hakone is famous for a reason: you barely touch your wallet between rides because one pass covers everything. The golden route runs like a relay. From Hakone-Yumoto you take the mountain railway up to Gora, switch to the cable car to Sounzan, then the ropeway floats you over Owakudani, the steaming volcanic valley. Come down to Togendai, board a sightseeing "pirate ship" across Lake Ashi, and finish at the torii of Hakone Shrine standing in the water. Each leg is a different machine, a different view.
⚠️ Snack stop
At the Owakudani station you'll find the black eggs (kuro-tamago), cooked in the sulphur springs until the shells turn black. A pack of five runs 500 yen at the black-egg hall beside the station. Local legend says each one adds years to your life. Worth the queue for the photo alone.
The Hakone Free Pass is the key to all of it — a single ticket good for eight different modes of transport across the area, so you ride the railway, cable car, ropeway, boat and local buses without buying anything else.
Lake Kawaguchiko: lavender and spring water facing Mt. Fuji
This is where Mt. Fuji stops being a postcard and starts filling your whole window. Oishi Park sits on the north shore, free to enter, and the lakeside flower beds line up straight toward the mountain. Time it right and the lavender is in full bloom from late June through mid-July. A short hop away, Oshino Hakkai is a cluster of eight spring-water ponds fed by Fuji snowmelt, clear enough to see straight to the bottom — a registered World Heritage site.
The classic Mt. Fuji photo, and a 3-minute ropeway
For the shot you've seen a hundred times — five-storey pagoda, torii gate and Mt. Fuji stacked in one frame — head to Arakura Fuji Sengen Shrine and the Chureito Pagoda. Then ride the Tenjozan Ropeway up the lakeside hill; the trip takes about three minutes and drops you at a viewpoint over the whole lake. If your dates line up, the Lake Kawaguchiko Lake Festival fireworks light up the shore on Saturday, 4 July 2026, from 20:00 to 20:30. Stake out a spot early.
Karuizawa: Tokyo's summer back garden
Karuizawa is the easy one to reach and the easy one to love. The Hokuriku Shinkansen runs straight there from Tokyo Station in about 60 to 70 minutes, and you arrive in a different climate. Start with Kumoba Pond, a mirror of larch trees and water, then wander Old Karuizawa Ginza for the cafes and shops. Out at Hoshino you'll find the Harunire Terrace village and the Stone Church tucked in the woods. Shiraito Falls spreads in a wide curtain of spring water, and the Karuizawa Prince Shopping Plaza outlet sits right next to the station — dangerous if you have a train to catch.
Getting around town is cheap: the in-town loop bus is a flat 100 yen per ride. The real draw in summer is the temperature. Karuizawa has been a hill retreat for over a century, and through July and August it stays noticeably cooler than the city, which makes it the go-to escape from Tokyo's heat.
Cross-prefecture transport and passes at a glance
| Segment | Transport | Time / fare | Suggested pass |
|---|---|---|---|
| Tokyo → Hakone | Odakyu Romancecar (Shinjuku → Hakone-Yumoto) | About 1.5 hours | Hakone Free Pass (3 days, around 4,500 yen, 8 transport modes) |
| Tokyo → Lake Kawaguchiko | JR Fuji Excursion (Shinjuku → Kawaguchiko Station) | About 115 min · around 4,130 yen | Kawaguchiko sightseeing bus pass (2 days, around 2,000 yen) |
| Tokyo → Karuizawa | Hokuriku Shinkansen (Tokyo Station → Karuizawa) | About 60–70 min · reserved seat around 6,130 yen | Single tickets or a JR pass |
⚠️ One pass won't cover everything
Hakone (Odakyu), Fuji Excursion and the Hokuriku Shinkansen run on different rail systems, so a nationwide JR Pass cannot bundle the whole loop. Buy the Hakone Free Pass for Hakone, ride the Fuji Excursion plus a sightseeing bus pass for the lake, and price the Shinkansen leg on its own.
Staying online across four prefectures: Local Breakout or roaming?
You'll be moving constantly — train transfers, mountain ropeways, lakeside viewpoints — and every one of them leans on your phone for maps, train times and the next reservation. A weak signal in the mountains or out by the lake turns a smooth day into guesswork. So the data question is worth settling before you fly. Both options below are unlimited for the whole trip; you're choosing on routing and how heavily you use data.
| Compare | Japan Local Breakout unlimited | Japan roaming unlimited |
|---|---|---|
| Routing | Direct on a Japanese carrier (Local Breakout) | Routed via an overseas exit (Roaming) |
| Speed experience | The full-speed version performs well; there's also a 10Mbps capped version to match your budget | Unlimited throughout, speed depends on the exit |
| Setup | Scan the QR, install, and it's ready once configured | Quick to activate, broad device compatibility |
| Best for | Heavy navigation, uploads and streaming on a local Japanese network | Light-to-moderate use, older phones, budget-conscious trips |
If you film, upload and lean on real-time maps all day, the Japan Local Breakout unlimited plan connects straight onto a Japanese carrier. If your phone is a few years old or you mostly check maps and messages, the Japan roaming unlimited plan activates fast and works on a wide range of devices. Stella's rule of thumb: match the plan to how you actually use your phone, not to the longest spec sheet. Want to see the full lineup first? Browse every Japan eSIM plan, and if you're weighing the full-speed version against the 10Mbps cap, the full-speed vs 10Mbps breakdown walks through it in detail.
Settle the data before you go, and the trip just flows
Book the passes, install the eSIM, and the moment you land at Narita your phone is already pulling up directions, train times and the next train to Hakone — no airport SIM counter, no scramble for Wi-Fi. The route does the rest: four prefectures, one loop, one week. Sort the tickets and the connection ahead of time and the only thing left to decide on the ground is which black egg to eat first.
