Yamanashi · Mt. Fuji Views + World's Oldest Hotel / 山梨 / 富士山と世界最古の宿

Yamanashi Onsen Guide

Top hot springs, ryokan, and day-use baths in Yamanashi — bilingual guide for travelers.

山梨のおすすめ温泉地・温泉宿・日帰り温泉を厳選紹介。

Yamanashi is the prefecture wrapped around the northern flanks of Mt. Fuji — and its onsen culture is defined by Fuji views from the bath. Hottarakashi Onsen looks straight across the Kofu basin at Mt. Fuji rising in the distance, one of the most photographed bath views in Japan. Isawa Onsen, in the heart of the peach-growing Kofu basin, is a 90-minute Limited Express from Shinjuku. Western Yamanashi hides Nishiyama Onsen Keiunkan — Guinness-certified as the world's oldest continuously-operated hotel (founded 705 AD, 52 generations of the same family). Shimobe served as the secret healing bath of warlord Takeda Shingen. From Tokyo: 90 min via Azusa limited express to Isawa Onsen.

山梨県は富士山の北麓を取り巻く県で、温泉文化は「湯から富士山」が共通テーマ。ほったらかし温泉は甲府盆地越しに富士山を真正面に望み、日本一フォトジェニックな浴槽景観のひとつ。石和温泉は桃の名産地・甲府盆地中心で、新宿から特急あずさで90分の超アクセス。西部山梨には「慶雲館」——705年開湯で52代続く、ギネス認定「世界最古の連続営業宿」。下部温泉は武田信玄の隠し湯。東京から特急あずさで石和温泉まで90分。

5 Top Onsen in Yamanashi

Where to soak

山梨のおすすめ温泉地・温泉宿 5選

Isawa Onsen (石和温泉)01

Isawa Onsen

石和温泉

Yamanashi's biggest onsen — peach orchards + 90 min from Shinjuku

山梨最大の温泉、桃畑と新宿から90分

SpringAlkaline simple spring単純温泉(アルカリ性)
Fromfrom ¥14,000 / night
SourceFree-flow (kakenagashi) per public info/ 源泉かけ流し(公式情報)

Isawa Onsen is the largest onsen district in Yamanashi, located in the heart of the Kofu basin — Japan's premier peach- and grape-growing region. The hot spring was discovered relatively recently (1961, gushed up while drilling for grape-orchard irrigation) and quickly developed into the modern resort it is today, with 40+ ryokan and hotels plus large multi-bath day-use facilities (over 120 properties at its peak). The springs are alkaline simple type — soft and skin-friendly. June–August is peach season; August–October is grape season; spring brings pink-and-white peach blossoms. From Shinjuku: Limited Express Azusa to Isawa Onsen Station in 90 min.

  • Yamanashi's biggest onsen district — 40+ ryokan today (120+ at its peak)
  • Peach + grape orchards within walking/biking distance
  • 90 min from Shinjuku via Azusa limited express

Hours and prices vary — always confirm on the official site before visiting.
営業時間・料金は変動するため、必ず公式サイトでご確認ください。

Hottarakashi Onsen (ほったらかし温泉)02

Hottarakashi Onsen

ほったらかし温泉

Day-use onsen with iconic Mt. Fuji panorama

富士山ビューの絶景日帰り露天

SpringAlkaline simple spring単純温泉(アルカリ性)
Fromfrom ¥900 / visit

Hottarakashi Onsen is one of the most famous day-use onsen views in all Japan — built on a hillside above the Kofu basin, looking directly across at Mt. Fuji rising 60 km away. Two outdoor baths face the panorama: "Atchi-no-yu" (this one) and "Kotchi-no-yu" (that one), each with slightly different angles. Open from before sunrise (typically 5:30am, varies by season), enabling the legendary "Morgenrot" first light of Mt. Fuji glowing pink — one of the most-photographed onsen moments. ¥900 admission, no overnight stays. From Isawa Onsen: 15 min by taxi.

  • Iconic Mt. Fuji view — most-photographed day-use onsen
  • Pre-sunrise opening for "Morgenrot" first-light photos
  • ¥900 admission — best-value Fuji view in Japan

Hours and prices vary — always confirm on the official site before visiting.
営業時間・料金は変動するため、必ず公式サイトでご確認ください。

Nishiyama Onsen (西山温泉)03

Nishiyama Onsen

西山温泉

Home of Keiunkan — Guinness world's oldest hotel (705 AD)

慶雲館の故郷、ギネス認定世界最古の宿

SpringCalcium sodium sulfate chloride spring硫酸塩・塩化物泉(カルシウム・ナトリウム)
Fromfrom ¥38,000 / night
SourceFree-flow (kakenagashi) per public info/ 源泉かけ流し(公式情報)

Nishiyama Onsen is a tiny mountain hamlet in western Yamanashi, with one of the most extraordinary single ryokan in human history: Keiunkan — Guinness World Records-certified as the world's oldest continuously-operated hotel/inn, founded in 705 AD and run by 52 generations of the same Fujiwara family without interruption for 1,300+ years. The mountain-stream-side complex has been rebuilt over the centuries but the spring and lineage are unbroken. The hot spring (calcium-sodium sulfate) has been recognized as Japanese imperial-level healing water since the Nara period (Emperor Tenmu reportedly bathed here). Beyond Keiunkan, only 2–3 other small inns operate. From Tokyo: 3h by car or Limited Express + bus via Minobu.

  • Keiunkan — Guinness world's oldest hotel (705 AD, 52 generations)
  • Emperor Tenmu's legendary 7th-century bathing site
  • Tiny mountain hamlet — fewer than 5 ryokan total

Hours and prices vary — always confirm on the official site before visiting.
営業時間・料金は変動するため、必ず公式サイトでご確認ください。

Shimobe Onsen (下部温泉)04

Shimobe Onsen

下部温泉

Takeda Shingen's "secret healing bath" — 1,200 years

武田信玄の隠し湯、1200年の名湯

SpringAlkaline simple sulfate spring単純硫酸塩泉(アルカリ性)
Fromfrom ¥16,000 / night
SourceFree-flow (kakenagashi) per public info/ 源泉かけ流し(公式情報)

Shimobe Onsen is the most famous of "Takeda Shingen's Hidden Baths" — a network of 8 secluded onsen in Yamanashi where the 16th-century warlord supposedly sent wounded samurai to recover. Founded according to legend in the early 9th century, Shimobe sits in a quiet valley of the Fuji River system. The hot spring is unusually cool (around 30°C from source — re-heated for bathing) and contains rare minerals said to support wound healing — a reputation that brought military officers from across Japan in the Edo period. About 10 traditional ryokan operate today. From Tokyo: 2h 30min via JR Minobu Line.

  • Most famous "Takeda Shingen Hidden Bath" — 8-onsen network
  • Early-9th-century legendary founding — ~1,200 years
  • Cool 30°C source — re-heated for bathing, unique chemistry

Hours and prices vary — always confirm on the official site before visiting.
営業時間・料金は変動するため、必ず公式サイトでご確認ください。

Yumura Onsen (湯村温泉)05

Yumura Onsen

湯村温泉

Kofu City onsen — Takeda Shingen's castle-side bath

甲府市内の温泉、武田信玄の城下湯

SpringAlkaline simple spring単純温泉(アルカリ性)
Fromfrom ¥14,000 / night
SourceFree-flow (kakenagashi) per public info/ 源泉かけ流し(公式情報)

Yumura Onsen sits at the western edge of Kofu City — a rare example of a major onsen located right inside a prefectural-capital city. Founded in the 9th century, it served as Takeda Shingen's personal bath complex during his 16th-century reign as lord of Kai Province. Today around 10 ryokan operate in a compact district just 15 minutes from Kofu Station, making it Yamanashi's most convenient onsen for non-driving visitors. The hot springs are alkaline simple type, naturally at bathing temperature. Pairs well with same-day visits to nearby Takeda Shrine and Kofu Castle ruins.

  • A major onsen right inside the prefectural capital (Kofu City)
  • Takeda Shingen's 16th-century personal bath
  • 15 min by bus from Kofu Station — top access in Yamanashi

Hours and prices vary — always confirm on the official site before visiting.
営業時間・料金は変動するため、必ず公式サイトでご確認ください。

Insider Tips for Yamanashi

Know before you go

山梨の旅で知っておきたい5つのこと

Hottarakashi Pre-Dawn for Mt. Fuji Morgenrot

ほったらかし「夜明け前」の富士山ピンク

For the legendary "Morgenrot" — Mt. Fuji glowing pink at first light — arrive Hottarakashi 30 min before sunrise. December–March is the clearest season (winter air = sharpest Fuji). Bring warm clothes for the walk from parking. The "Atchi-no-yu" upper bath has the wider view. Daylight savings doesn't apply — check exact sunrise time the day of visit.

富士山が朝日でピンクに染まる「モルゲンロート」狙いなら日の出30分前到着。12〜3月は空気が澄んで最もくっきり。駐車場から歩く際は防寒推奨。「あっちの湯」(上の湯)のほうが視界広い。日の出時刻は当日確認を。

Isawa Peach + Grape Picking Combo

石和温泉で桃狩り+ぶどう狩り

June–August: peach picking (about ¥3,000 per person, eat-all-you-can in 30 min at orchards). August–October: grape picking (Koshu, Pione, Shine Muscat varieties). Many Isawa ryokan partner with local farms for half-day picking + onsen + lunch packages. Best for families and Instagram content.

6〜8月は桃狩り(1人3000円、30分食べ放題)、8〜10月はぶどう狩り(甲州・ピオーネ・シャインマスカット)。石和温泉の多くの旅館が農園と提携し「半日狩り+温泉+昼食」パッケージを提供。家族連れ・SNS向けに人気。

Keiunkan Reservation — 6+ Months Ahead

慶雲館は半年前から予約必須

Keiunkan has only ~35 rooms but global Guinness-driven demand. Domestic and international guests book 6–12 months out for weekends/holidays. Weekday January–February stays open up ~3 months ahead. Be flexible on dates if you can. Plan B: nearby Shimobe Onsen offers the same warlord-era atmosphere at less than 1/2 the price.

慶雲館は約35室しかなく、ギネス効果で世界中から予約殺到。週末・連休は半年〜1年前完売。平日の1〜2月は3ヶ月前で取れることも。日程に柔軟性があれば穴場。代替案:近くの下部温泉は戦国期の雰囲気を半額以下で味わえる。

Yamanashi Wine Pairing at Isawa

石和でワイン+温泉のペアリング

Yamanashi produces 30% of Japan's wine — the Kofu basin around Isawa hosts 80+ wineries (Lumière, Grace, Sadoya, Shirayuri, etc.). Several Isawa ryokan offer wine pairing kaiseki with Yamanashi varietals. Wine-tasting tours (taxi + 3–4 wineries) cost ~¥10,000 for a day. Best Sept–Oct for harvest season.

山梨は日本のワイン生産の30%を占め、石和周辺の甲府盆地にワイナリー80軒以上(ルミエール・グレイス・サドヤ・白百合醸造等)。石和の旅館の一部で山梨ワインペアリング懐石を提供。タクシー巡回(3〜4ワイナリー)約1万円/日。9〜10月の収穫時期がベスト。

Combine with Mt. Fuji 5th Station

富士スバルライン5合目と組合せ

Yamanashi onsen + Mt. Fuji visit in one trip: Day 1: Tokyo → Isawa or Hottarakashi (1 night). Day 2: Drive/bus 90 min to Fuji-Subaru Line, ride up to 5th Station (2,305m elevation) for direct Fuji-side close-up. Open mid-April to late November (winter closed). Free shuttle from Kawaguchiko Station ¥2,500 round trip.

山梨温泉+富士山訪問の組合せ:1日目東京→石和 or ほったらかし(1泊)。2日目バス・車で富士スバルラインへ90分、富士山5合目(標高2305m)まで上って間近に富士を体感。4月中旬〜11月下旬の開通(冬期閉鎖)。河口湖駅から無料シャトル+ライン往復2500円。

Travel Essentials

Plan your trip

旅の準備

Book a Ryokan

Use major Japanese travel platforms to find ryokan with private open-air baths, tattoo-friendly facilities, or vegan kaiseki meals.

eSIM & WiFi

Most onsen towns have spotty 4G coverage. A Japan eSIM or pocket WiFi keeps Google Maps and translation apps running smoothly.

Getting There

See each onsen listing above for access details. Most Yamanashi onsen towns are reachable by JR trains, limited express, or highway bus; for remote springs, a rental car gives the most flexibility.

FAQ

Common questions

よくある質問

Is Yamanashi worth visiting for onsen alone?温泉目的だけで山梨に行く価値ある?

It's a strong "yes" if Fuji views matter to you (Hottarakashi is unique nationwide) or if you want to stay at the world's oldest hotel (Keiunkan). For general onsen exploration without specific draws, Hakone or Atami are easier from Tokyo. But Yamanashi adds peach/grape/wine country which others lack.

富士山ビューを重視するなら絶対あり(ほったらかしは全国唯一の景観)、世界最古の宿に泊まりたいなら慶雲館。それ以外の一般的な温泉旅なら箱根・熱海の方が東京から楽。ただ山梨は桃・ぶどう・ワインなど他県にない要素が豊富。

Best time to see Mt. Fuji clearly?富士山を綺麗に見られる季節は?

November–February has the clearest air (winter dryness) and the strongest snow cover. Early morning (sunrise +1h) is best every season — clouds typically build by late morning. Hottarakashi statistics show 65% Fuji visibility December–February vs. 30% in July–August. The driest months also coincide with the easiest peach/grape orchard travel.

11〜2月は空気が乾燥していて最も鮮明、雪冠もくっきり。早朝(日の出後1時間)が一年中ベスト(午前遅くから雲が出る)。ほったらかしの統計で12〜2月の富士山視認率65%、7〜8月は30%。乾燥期は桃・ぶどう畑の旅行にも適しています。

Can I day-trip from Tokyo to Yamanashi onsen?東京から山梨温泉、日帰り可能?

Yes — Isawa Onsen (90 min Limited Express) and Hottarakashi (1 day-use ¥900) are easy day trips. Many Isawa ryokan offer "day-use" with bath + room + lunch for ¥3,000–6,000. For Hottarakashi: Shinjuku → Isawa Onsen Station → 10-min taxi. Aim for 7am Tokyo departure, return by 5pm.

可能です。石和温泉(特急90分)とほったらかし(日帰り900円)は日帰り定番。石和の多くの旅館で「日帰り入浴」(風呂+個室+昼食で3000〜6000円)。ほったらかしへは新宿→石和温泉駅→タクシー10分。朝7時東京発、17時帰京で十分。

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