Savoring the Springs: Inside Gero Onsen’s 2026 Masu-Zake Walk and the Centuries-Old Breweries Crafting Hida’s Liquid Gold

Executive Overview

From September through the end of October 2026, one of Japan’s most celebrated hot spring towns transforms into an open-air tasting room. The Gero Onsen Masu-Zake Walk invites travelers to trade their traditional indoor relaxation for an immersive, walkable culinary journey through the historic streets of Gero, Gifu Prefecture. Featuring 10 distinct participating venues—including atmospheric restaurants, local cafes, and specialized liquor stores—this two-month autumn event marries the mineral-rich restorative waters of Gero Onsen with the pristine, award-winning brewing heritage of the Hida region.

Central to the experience is the digital ticketing system: each purchased sake set grants visitors four digital tasting tickets. With ten unique beverages curated across the participating storefronts, attendees face the delightful challenge of curating their own tasting itinerary. Far from a standard pub crawl, the Masu-Zake Walk breaks away from predictable Junmai Daiginjo pours, showcasing an ambitious lineup that spans effervescent doburoku (unrefined sake), aromatic shochu, internationally acclaimed competition winners, and even a high-proof, globally recognized craft vodka produced by a centuries-old sake house.

This comprehensive guide explores the historical bedrock of the event, profiles the two legendary breweries—Tenryo Sake Brewery and Oku Sake Brewery—driving the region’s liquid renaissance, maps out the standout tasting stops, and reveals how a single wooden masu cup can unlock the cultural soul of Gero Onsen.

Detailed Chronology & Event Mechanics

The Gero Onsen Masu-Zake Walk is meticulously designed to merge leisurely strolls with high-end regional gastronomy. Running exclusively from September to October 2026, the event harnesses the pleasant autumn climate of the Japanese Alps, making it an ideal season for outdoor exploration.

How the Walk Operates

1. Digital Ticketing: Participants acquire a set featuring four digital tasting tickets, accompanied by a traditional wooden masu box used for sampling.
2. The Map & The Stops: Ten distinct locations scattered throughout the hot spring town participate in the event. These range from daytime-friendly cafes like Rokudai (open from 1:00 PM) to long-standing local dining spots serving regional delicacies like Keichan (marinated and grilled chicken) and Goheimochi (sweet-miso-glazed rice cakes).
3. Strategic Tasting: Because visitors hold four tickets against a menu of ten distinct offerings, planning becomes part of the adventure. Walkers can tailor their journey based on tasting profiles—opting for historic legend-inspired brews, competition-grade gold medalists, or unconventional craft spirits.

Supporting Context & Heritage: The Master Brewers of Hida

The excellence of the Gero Masu-Zake Walk rests firmly on the shoulders of two historic institutions: Tenryo Sake Brewery and Oku Sake Brewery. Both operations leverage the pure snowmelt, underground spring water, and indigenous rice varieties of the Hida region, yet each brings a distinct philosophy to the art of fermentation.

Tenryo Sake Brewery: Tradition Meets Modern Innovation

• Location: Hagiwara-cho, Gero City (just north of the main hot spring town)
• Founded: 1680 (Over 340 years of operation)
• Signature Approach: Tenryo relies heavily on Hidahomare, an indigenous Hida sake-rice variety, combined with soft, natural underground spring water. While deeply rooted in centuries-old traditions, Tenryo is renowned for pushing boundaries.
• The 2026 Highlight (ANDANTE): Marking a departure from heavy, traditional profiles, Tenryo introduced "ANDANTE," a light-bodied brew featuring a 10% alcohol content. Designed to mirror the crisp, refreshing drinkability of white wine while preserving the rich umami of rice, its musical namesake (andante meaning "at a walking pace") makes it the ultimate companion for a leisurely stroll through Gero.

Oku Sake Brewery: Consecutive Gold-Medal Mastery

• Location: Kaneyama Town, Gero City (a historic post town)
• Founded: 1720 (Over 300 years of brewing excellence)
• Signature Approach: Situated near the convergence of the Hida and Maze rivers, Oku utilizes crystal-clear regional groundwater and locally harvested Hidahomare rice. Their flagship brands, Oku and Hatsumidori, command immense respect domestically and internationally.
• Recent Accolades: Demonstrating astonishing consistency, Oku Sake Brewery captured a Gold Medal at the All Japan New Sake Appraisal Competition for the fourth consecutive year in 2026. Furthermore, their international footprint is cemented by top honors at the International Wine Challenge (IWC) and France’s Kura Master competition. Uniquely, Oku holds a rare vodka production license secured as early as 1959, proving their mastery extends far beyond conventional Japanese brewing.

Curated Venue Guide & Tasting Highlights

The 10 participating stops along the Masu-Zake Walk offer an astonishing diversity of flavors. Here is an in-depth breakdown of the stops, mapped sequentially, and the stories bottled within them.

1. Fukiya

• The Setting: A venerable restaurant and cafe located directly on the path between JR Gero Station and the hot spring hub, celebrated for comforting set meals and regional Gero cuisine.
• The Pour: “Tsukiyo no Shirasagi Junmai Daiginjo”
• The Story: Gero Onsen’s foundational folklore tells of a wounded white heron that revealed the location of the healing thermal waters. The bottle’s label honors this myth. Brewed with Hyogo-grown Yamada Nishiki polished down to 35%, this expression delivers an ethereal, aromatic profile with an exceptionally smooth finish.

2. Ogawaya Liquor Store

• The Setting: A premier bottle shop offering an extensive catalog of Hida’s finest local labels, equipped with on-premise tasting facilities for dedicated enthusiasts.
• The Pour: Tenryo Brewery’s innovative “ANDANTE”
• The Tasting Profile: Clocking in at 10% ABV, this light, wine-like sake bridges the gap between traditional Japanese brewing and modern casual drinking, emphasizing relaxed pacing and conversation.

3. Gunpachi Gero Onsen

• The Setting: A lively dining establishment known for regional hospitality.
• The Pour: “Hiten” Shochu (25% ABV)
• The Tasting Profile: Eschewing traditional sake, Gunpachi pours a high-grade distilled spirit crafted from the premium sake lees of Tenryo’s Daiginjo production. The result is a fragrant, highly aromatic shochu that captures the residual ginjo essence in a robust spirit format.

4. Shokusai Dining Sho

• The Setting: A culinary destination specializing in prized Hida beef dishes.
• The Pour: A special-edition Junmai Daiginjo entered and awarded at the 2026 National New Sake Appraisal Competition.
• The Tasting Profile: Crafted from 35% polished Yamada Nishiki, this masterpiece boasts a crystalline mouthfeel, rich umami depth, and an ultra-clean finish—representing the literal pinnacle of a brewery’s annual output.

5. Hagi Kei-chan

• The Setting: Home to Keichan, Gifu Prefecture’s beloved soul food consisting of tender chicken grilled in a savory miso and soy-sauce blend.
• The Pour: A localized Junmai Daiginjo brewed exclusively from Hida’s native Hidahomare rice.
• The Tasting Profile: Exhibiting a gorgeous bouquet, refined natural sweetness, and a harmonious interplay of acidity and rice umami, it forms an ideal pairing with rich, savory local poultry dishes.

6. Hoteya

• The Setting: A cozy local establishment offering warm hospitality.
• The Pour: Oku Sake Brewery’s 2026 National New Sake Appraisal Gold Medal-winning Daiginjo (marking their fourth straight year taking home the gold).
• The Tasting Profile: Fermented painstakingly at low temperatures using 35% polished Yamada Nishiki, this limited-run bottling (capped at just 600 bottles total) achieves a breathtaking balance of sweetness, acidity, and gentle spice.

7. Kashiwaya Liquor Store

• The Setting: A classic hot spring town bottle shop.
• The Pour: Tenryo Doburoku (9–10% ABV)
• The Tasting Profile: Unlike filtered sake, doburoku retains the unpressed moromi (fermenting mash of rice, koji, and water). This "living alcohol" offers a cloudy appearance, lively effervescence, rich rice sweetness, and a bright, lactic acidity.

8. Norin’s House

• The Setting: A popular walk-and-eat snack stop famous for street treats like goheimochi (sweet-miso-glazed rice cakes) infused with locally harvested perilla seeds.
• The Pour: “Hatsumidori Junmai Daiginjo” by Oku Brewery.
• The Pedigree: A globally celebrated bottle holding a Gold Medal from the International Wine Challenge 2025 and a Platinum award at France’s Kura Master 2023, delivering silk-smooth elegance on the palate.

9. aube

• The Setting: A stylish lounge featuring a distinct contemporary atmosphere.
• The Pour: “Oku Vodka” (55% ABV)
• The Backstory: Defying expectations, this high-proof spirit is an authentic rice-based vodka crafted by a historic Japanese sake brewery, purified through birch charcoal filtration. Notably, this exact bottling was served at an official state dinner during Russian President Vladimir Putin’s visit to Japan in 2016.

10. Rokudai

• The Setting: Situated in the Mori district of Gero Onsen and opening early at 1:00 PM, making it an ideal first or intermediate stop for afternoon strollers.
• The Pours: “Oku Tokusen Junmai Daiginjo” and “Tenryo Shuzo Daiginjo Tenroku Hairyo”.
• The Appeal: Rokudai allows visitors to perform an illuminating side-by-side comparison of Gero’s two great rival breweries under one roof. Both pours utilize 35% polished Yamada Nishiki, yet showcase distinct regional philosophies in aromatics and structure.

11. Meat Broth (Shiro)

• The Setting: A specialized eatery focused on rich, comforting broths and meat dishes.
• The Pour: A singular Junmai Daiginjo brewed entirely from “Ryū no Hitomi” (Dragon’s Eye)—a premium, large-grain table rice variety indigenous to Gero City, crafted exclusively by Oku Sake Brewery.
• The Narrative: A true expression of terroir, uniting grain grown in Gero soil with the craftmanship of a local Gero brewery.

Future Outlook & Visitor Advisory

As culinary tourism in Japan continues to evolve toward hyper-local, narrative-driven experiences, the Gero Onsen Masu-Zake Walk stands out as a masterclass in regional destination marketing. By transforming a traditional hot spring resort into an interactive tasting gallery, the event encourages visitors to linger longer, explore side streets, and engage directly with local merchants, artisans, and brewers.

Key Takeaways for Your Itinerary:

• Thematic Selection: Whether you choose to track down legendary folklore bottles (The White Heron in the Moonlight), explore indigenous Hida rice expressions (Hidahomare), benchmark competition gold medalists, or step outside the box with craft vodka and doburoku, the four-ticket system rewards curiosity.
• Practical Advice: Operating hours and days for participating boutique stores and restaurants are subject to change; travelers are strongly advised to check the official Masu-Zake Walk Portal prior to arrival.
• Responsible Enjoyment: The event strictly enforces legal drinking ages (20+ in Japan) and maintains a zero-tolerance policy for drunk driving.

Ultimately, the Gero Onsen Masu-Zake Walk is much more than a tasting event. It is an invitation to decode the history of the Japanese Alps through the medium of exceptional craftsmanship—proving that the journey of a single drop can reveal the heart of an entire town.