Kyushu 88 Onsen-do

Kyushu 88 Onsen-do (九州八十八湯めぐり〜九州温泉道〜) is a Kyushu-wide onsen stamp pilgrimage. Participants collect 88 stamps in a small booklet from a curated pool of authentic hot springs spread across all seven prefectures of Kyushu, climbing an eleven-rung ladder of ranks toward the apex title of 泉人 (Senin). It launched on 26 November 2010, Japan's "Good Bath Day" (いい風呂の日), originally run by JR Kyushu; since April 2015 it has been administered by the Kyushu Tourism Organization (一般社団法人 九州観光機構).

The program is modeled on the older Beppu Hatto Onsen-do (別府八湯温泉道) and shares its framing of bathing as a "way" (道) to be walked with discipline and curiosity. Its guiding idea is to lead bathers to the real thing (ホンモノ): springs chosen for water quality above all else.

It is not a fixed list of 88

This is the key thing to understand. There is no fixed set of 88 onsen. Instead a selection committee maintains a larger pool of designated facilities (130 in 2022, around 148 in 2025, and 160 as of 2026), and you choose any 88 from that pool, as long as they span the required spread of prefectures. The pool changes year to year as facilities join, close, or rotate.

The selection committee (九州八十八湯選定委員会)

Facilities are curated by four onsen experts, with strict emphasis on spring quality:

• Isao Gunji (郡司勇), onsen researcher and architect, 5,600+ springs visited
• Masaki Saito (斉藤雅樹), director of the Beppu Onsen Earth Museum, originator of the Beppu Hatto model
• Yuichi Tsuchiya (土谷雄一), first honorary master of Beppu Hatto Onsen-do
• Kyoko Kitade (北出恭子), onsen analyst, 300+ springs per year

The stamp book (御湯印帳)

Your passport for the journey.

• What it is: a small booklet, the 御湯印帳 (o-toyuin-cho).
• Where to buy: major JR Kyushu stations, tourist information centers and airports, and some participating facilities.
• Cost: ¥100 per book.
• Validity: no expiration. Collect at your own pace, over months or years.

Stamping rules

1. One stamp per facility. Bathe at a designated facility, then have your book stamped. A facility counts only once toward your total.
2. Duplicates and outside stamps are invalid. Stamping the same facility twice does not count, and only official 九州温泉道 stamps are accepted.
3. Self-service at some baths. A few unmanned facilities provide a self-stamp station.
4. No order, no time limit. Visit in whatever order suits your travel; stamps do not expire.
5. Bathe at a comfortable pace. The official guidance asks you not to over-bathe in a single day.

The eleven ranks (段位)

Ranks are awarded by the number of distinct facility stamps and by how many prefectures they span. The top three ranks require all 7 prefectures.

Each line below is one rank: stamps required, prefectures that must be covered, and the certification fee.

• 見習い (Minarai): 8 stamps, no prefecture minimum. Fee ¥500.
• 入門 (Nyumon): 16 stamps, 2 prefectures. Fee ¥1,000.
• 初級 (Shokyu): 24 stamps, 3 prefectures. Fee ¥1,000.
• 中級 (Chukyu): 32 stamps, 4 prefectures. Fee ¥1,000.
• 初段 (Shodan): 40 stamps, 5 prefectures. Fee ¥1,000.
• 二段 (Nidan): 48 stamps, 5 prefectures. Fee ¥1,000.
• 三段 (Sandan): 56 stamps, 6 prefectures. Fee ¥1,000.
• 四段 (Yondan): 64 stamps, 6 prefectures. Fee ¥1,000.
• 風呂 (Puro, a pun on "pro"): 72 stamps, 7 prefectures. Fee ¥1,000.
• 泉生 (Sensei): 80 stamps, 7 prefectures. Fee ¥1,000.
• 泉人 (Senin): 88 stamps, 7 prefectures. Fee ¥1,500. The apex rank.

Each rank carries a small token (a strap, a hand towel, soap, a bath bucket, coffee milk, an onsen egg, canned beer, and title plaques at the top). At the apex, Senin holders have their names displayed at Takegawara Onsen in Beppu and receive discounts at participating facilities.

How to apply for a rank

When you reach a rank threshold, submit your stamp book to the program secretariat:

1. By mail: send the book with a postal money order (郵便為替). Processing takes roughly 1 to 10 days.
2. In person: bring the book and cash to the office (call ahead).
3. By email: available for ranks below Senin, paying by bank transfer with photos of the book and transfer proof.

The secretariat is in Beppu (大分県別府市北浜, c/o "yoiya"). Confirm the current procedure and address with the program before sending anything.

Tips

• Oita is the dense core. Beppu, Yufuin and Nagayu give the highest concentration of designated facilities; a single Oita-focused trip can rack up many stamps. The seven-prefecture rule, though, eventually pulls you across the whole island.
• Plan around the prefecture spread. Because higher ranks demand stamps in more prefectures, sketch your route by prefecture early rather than collecting 80 stamps in two of them.
• Watch the pool. The designated list is refreshed periodically; confirm a facility is still designated (and open) before a long detour.
• Keep the book handy. Smaller facilities stamp on request at the front desk.

Earning the Onsen Oni badge

The Kyushu 88 Onsen Senin badge is awarded by Onsen Oni moderators to users who complete the full 88 and earn the 泉人 (Senin) rank. Send evidence of completion (your filled 御湯印帳 or the Senin certificate) through the feedback channel and moderators will grant the badge.

This badge is repeatable: the number on your tile is how many times you have completed the full 88, not how far you have climbed the rank ladder.

Sources

• 九州八十八湯めぐり〜九州温泉道〜 (Official site)
• What it is (Official)
• How to participate and ranks (Official)
• Designated facilities map (Official)
• 九州八十八湯めぐり〜九州温泉道〜 (Wikipedia)