Here’s something the guidebooks bury under “Mt. Fuji day trips”: the most concentrated patch of fruit-growing genius in Japan sits about 90 minutes west of Shinjuku — and most people blow right past it on their way somewhere more famous.

I’m talking about Katsunuma.

If you’ve had a grape in Tokyo this summer that stopped you mid-sentence — one of those impossibly perfumed, jelly-sweet Shine Muscats that cost more than your lunch — there’s a very good chance it came from here. Yamanashi grows about a quarter of all the grapes in Japan, more than any other prefecture, and Katsunuma is the beating heart of it. Same prefecture, same sun-trap of a valley: Japan’s #1 peaches, too.

I went the first time half-expecting a nice-enough vineyard photo op. I left having eaten my body weight in fruit, soaked in a hot spring over the valley at dusk, and quietly rethought what “Japanese wine” even means. Let me walk you through the exact day I’d send a friend on.

Why I keep going back

Most fruit destinations give you one thing done well. Katsunuma is greedy in the best way.

It sits in the Kōfu Basin, ringed by mountains, on these fan-shaped slopes — senjōchi (扇状地), if you want the word your Japanese friend will nod at — that drain fast and bake through a huge day-to-night temperature swing. That’s the boring geography answer for why the fruit tastes the way it does: cold nights lock in sugar and perfume. The un-boring answer is that you bite a peach here in July, warm from the tree, juice runs to your elbow, and you understand it in your body instead of your head.

And here’s the part I love as a Tokyo person: it’s local in a way that runs deep. This isn’t a resort built for visitors — it’s a working fruit valley strung along the old Kōshū Kaidō, the highway that’s carried travelers between Edo (now Tokyo) and the west for centuries. You’re just the latest one to stop.

And how deep does the grape thing go here? The town’s own origin story is about fruit. As the local legend has it, back in the year 718 a wandering monk named Gyōki fell asleep on a rock in the gorge below and dreamed of the Buddha of healing — who appeared holding not the usual jar of medicine, but a bunch of grapes. He carved a statue of exactly that, founded a temple, and taught the villagers to grow grapes as medicine. Twelve hundred years later, they’re still at it. So when you’re standing under a trellis here cutting your own bunch, you’re not at an attraction. You’re doing the single oldest thing this whole valley knows how to do.

Getting there: the easiest fruit day trip from Tokyo

From Shinjuku, take a JR Chuo Line limited express (the Kaiji or Azusa) and get off at Katsunuma-Budokyo Station (勝沼ぶどう郷). It’s roughly 90 minutes. One heads-up: not every limited express stops at this smaller station, so check that yours does — otherwise take the local one stop, or double back from Kōfu.

Do the arrival slowly. The station is built into a slope, with viewing spots over the valley, and the moment you step onto the platform on a clear day, there it is: Mt. Fuji’s cap, resting on top of the Misaka mountains to the south, with a sea of grape trellises spilling down the hill below you. Be honest with yourself about what this is — it’s the peak only; the nearer ranges hide the rest, and it shows up only when the sky cooperates. But I’ve stood on that platform more times than I can count, and it gets me every single time. That’s your first photo. Take it before you do anything else.

One practical, unsexy truth: Japan has zero tolerance for drinking and driving — and that includes bicycles. So if wine tasting is on your list, do not rent a car or a bike to winery-hop. It’s trains, taxis, or a guided tour. Honestly, a tour is the move here: it takes both the logistics and the sobriety math off your plate.

What to eat and do

Pick your own — the whole point

In season, farms all across the valley open for pick-your-own (狩り, -gari). Grapes run roughly August into September; peaches roughly June into August. If you’re a Shine Muscat person — and if you’ve had one, you’re a Shine Muscat person — this is the source. You stand under the trellis, scissors in hand, and eat one that left the vine about four seconds ago. It ruins supermarket grapes for you a little. Sorry in advance.

A word on timing, because it matters more here than almost anywhere: this is a seasonal trip. Show up in April and you’ll get pretty scenery and zero picking. Come in the fruit window.

The grape temple

If you want the town’s whole soul in one quiet stop, walk up to Daizenji (大善寺) — the temple from that legend, about 3 km south of the station, looking out over the vines. Climb the 147 stone steps and you reach a wooden hall built in 1286: a National Treasure, and one of the oldest wooden buildings in eastern Japan. Inside is the grape-holding Buddha (the original is a “secret” statue shown just once every five years, so you’ll usually meet the stand-in — go for the hall and the hush, not a checklist). And because the priests here have grown grapes and made wine on the grounds for generations, you can buy a bottle of the temple’s own. A monk’s wine, from the spot where grapes supposedly began in Japan. Even I — card-carrying wine skeptic — found that a hard one not to love.

Budō-no-Oka: the hilltop where you taste the whole valley

If you do one built thing, make it Budō-no-Oka (ぶどうの丘) — a hilltop run by the city, wrapped 360° in vineyards. Down in the cellar they keep 150–200 local wines, and for the price of a little silver tasting cup (a tastevin) you pour your own, as many as you dare. Up top there’s a restaurant, a terrace, and a hot spring — more on that in a minute.

Let me be straight with you, because it’s the most useful thing I can do here: I’m not yet head-over-heels for Japanese wine. I’ve had a lot of thin, forgettable Koshu — Koshu being the pale local white grape — and shrugged. So I won’t hand you a “you’ll love it!” I don’t believe. What I’ll do instead is send you to that cellar to taste thirty of them yourself and make up your own mind. More honest. More fun, too.

Because here’s the twist I didn’t see coming. While I was busy being unimpressed, the rest of the world started paying attention. In 2024, a Yamanashi Koshu — Suntory’s Tomi Koshu 2022 — became the first Japanese wine ever to win “Best in Show” at the Decanter World Wine Awards, essentially a global top-50. Château Mercian’s Koshu keeps taking golds. The grape everyone (me included) once called “watery” is quietly getting very, very good. So maybe the honest headline is: I haven’t found my bottle yet — but this might be exactly the moment to go find yours, before everyone else catches on.

Lunch with a view

If you want the meal that makes the day feel like a proper treat, several wineries here run restaurants that look straight out over the vines. Restaurante Kaze (レストランテ風), on a hill above the valley, is known for its roast beef and local produce with the vineyards — and, at night, the town’s lights — spread out below. Zelkova (ゼルコバ), the restaurant at Lumière winery, does a month-changing “Yamanashi French” course built on local beef, trout, and seasonal fruit. The wine is the pairing; the food and the view are the reason you booked. This is the part I can rave about without a single asterisk.

Where to stay (and the local secret I actually love)

You can absolutely do Katsunuma as a day trip. But if you can steal an overnight, do the thing locals do: soak.

Right next door in the same valley is Isawa Onsen (石和温泉, in Fuefuki) — about five minutes from Isawa-Onsen Station — and up on Budō-no-Oka itself there’s an onsen called Tenkū-no-Yu, “the bath in the sky,” with an open-air tub that looks over the whole basin toward the Southern Alps. After a day of picking and tasting, lowering yourself into that water at dusk is — and I don’t say this lightly — one of my favorite feelings in all of Japan.

Now, my genuinely local tip. Beyond the ryokan, this region is dotted with big, unpretentious neighborhood baths — a whole spread of tubs, saunas, and a lounge to flop in afterward, all for a few coins. Pure everyday Japan, the opposite of a polished resort, and honestly my favorite way to end a day out here. If you want the real local rhythm, skip the fancy version and go soak with everyone else.

Two honest caveats, friend to friend, because nobody tells you these until you’re standing there confused:

• Tattoos. Many baths still turn away visible tattoos. These casual local baths tend to be a little more relaxed than traditional ryokan, but it varies place to place — check before you go, and ask about a cover patch or a private (kashikiri) bath if you need one.
• It’s naked, communal, and there’s etiquette. You wash fully at the little seated stations first, then get in clean; no towel in the water. It feels like a lot for about ninety seconds, and then it’s the most relaxed you’ll be all trip.

Nearby

Yamanashi is one big fruit-and-view basket, so if you have a second day: the peach orchards around Isawa and Fuefuki, just west, are the country’s #1 peach country — come in early summer and the valley turns pink with blossom first, then heavy with fruit. And if you’re chasing Fuji properly, the Fuji Five Lakes are over the mountains to the south — a different trip, but you’re already pointed that way.