Things to Do in Saku (佐久市), Nagano: Sights, Train Access & Travel Guide

Last reviewed: October 27, 2026 · Prices are approximate and for orientation only.

Overview & City Profile

Saku (佐久市) in Nagano Prefecture (Chubu, Japan) is anchored by local sights including Kasuga Onsen, Former Nakagomi School, Saku Balloon Festival and served by Kitanakagomi Station (北中込駅) (0.7 km) via the regional hub at Nagano Station (Hokuriku Shinkansen) & Matsumoto Station (JR Azusa). Set at 684 m elevation (36.2488°N, 138.4769°E), Saku offers travelers a base for sampling regional Shinshu soba (buckwheat noodles), Oyaki (stuffed roasted buckwheat buns), Sanzoku-yaki (crispy garlic fried chicken) cuisine and exploring neighboring Miyota (御代田町) (8.2 km), Komoro (小諸市) (9.9 km), Sakuho (佐久穂町) (11.9 km), Karuizawa (軽井沢町) (15.5 km).

Saku is located in east-central Nagano Prefecture in the Saku Basin of the upper reaches of the Shinano River. The city claims the distinction of containing the point furthest from the sea within Honshu island (actually this point lies within the former town of Usuda). Saku is located in former Shinano Province, and by the Sengoku period it was home to the Ochiai clan, a samurai family that sided with Uesugi Kenshin during his conflict with Takeda Shingen in the 1550s. The Ochiai clan consequently fought for the Uesugi during the Siege of Katsurayama in March 1557; all Ochiai members who took part in the battle were killed in combat or committed suicide. Within Nagano Prefecture, Saku (佐久市) serves as a city in Nagano Prefecture (municipal incorporation: 2005-04-01) and pairs naturally with wider prefectural highlights such as Original black-walled Matsumoto Castle, Zenko-ji Temple in Nagano, Jigokudani Snow Monkey Park, Nakasendo post towns (Narai-juku, Tsumago, Magome), Kamikochi, and Hakuba/Nozawa Onsen.

What to See & Do in Saku (佐久市): Landmarks & Sights

Visitors exploring Saku (佐久市) from Kitanakagomi Station (北中込駅) (0.7 km) at 684 m elevation (36.2488°N, 138.4769°E) can visit these nearby shrines, temples, parks, and geographic landmarks (with straight-line distances from central Saku):

• Kasuga Onsen — local sightseeing landmark near Saku (佐久市).
• Former Nakagomi School — local sightseeing landmark near Saku (佐久市).
• Saku Balloon Festival — local sightseeing landmark near Saku (佐久市).
• Saku Ski Garden "Parada" — local sightseeing landmark near Saku (佐久市).
• Shinkai Sansha Shrine — local sightseeing landmark near Saku (佐久市).
• Primary Rail Gateway for Saku: Kitanakagomi Station (北中込駅) (0.7 km) (connecting to Nagano Station (Hokuriku Shinkansen) & Matsumoto Station (JR Azusa)).

Closest Neighboring Municipalities to Saku

When planning a regional rail or driving loop around Saku (佐久市) and Kitanakagomi Station (北中込駅) (0.7 km), consider pairing your stop with the 5 closest neighboring municipalities across Nagano Prefecture and Chubu:

• Miyota (御代田町) — 8.2 km from Saku (Nagano Prefecture)
• Komoro (小諸市) — 9.9 km from Saku (Nagano Prefecture)
• Sakuho (佐久穂町) — 11.9 km from Saku (Nagano Prefecture)
• Karuizawa (軽井沢町) — 15.5 km from Saku (Nagano Prefecture)
• Tateshina (立科町) — 17.1 km from Saku (Nagano Prefecture)

Getting to Saku & Getting Around

Train & hub access to Saku (佐久市) via Kitanakagomi Station (北中込駅) (0.7 km): 1h 22m from Tokyo Station to Nagano on the Hokuriku Shinkansen (65m to Karuizawa), or 2h 35m from Shinjuku to Matsumoto on the JR Limited Express Azusa. From Nagano Station (Hokuriku Shinkansen) & Matsumoto Station (JR Azusa), transfer to local JR or private rail lines serving Kitanakagomi Station (北中込駅) (0.7 km) to reach central Saku (36.2488°N, 138.4769°E).

• Local rail & IC cards at Kitanakagomi Station (北中込駅) (0.7 km): JR regional trains and private commuter lines link Nagano with Saku (佐久市) and neighboring Miyota, Komoro, Sakuho. Nationwide IC cards (Suica, PASMO, ICOCA) work at major urban gates; for rural branch stations or local buses around Saku, carry ¥1,000 bills and ¥100 coins for the onboard fare box.
• Luggage & station coin lockers: Travelers exploring Saku and continuing toward Miyota can store bags at major transfer stations or check suitcase dimensions in our Luggage & Locker Checker and ship large bags ahead via Takkyubin.
• Driving & car rental around Saku: While Kitanakagomi Station (北中込駅) (0.7 km) anchors public transit for Saku, picking up a rental car at Nagano Station (Hokuriku Shinkansen) & Matsumoto Station (JR Azusa) makes it easy to link Kasuga Onsen and Former Nakagomi School with nearby Miyota (御代田町) (8.2 km), Komoro (小諸市) (9.9 km), Sakuho (佐久穂町) (11.9 km), Karuizawa (軽井沢町) (15.5 km). See our Renting a Car in Japan Guide.

What to Eat in Saku (佐久市) & Nagano

Dining near Kitanakagomi Station (北中込駅) (0.7 km) and across Saku (佐久市) highlights the regional food culture of Nagano Prefecture and Chubu. Look for these local specialties at station restaurants, family-run shokudo, and markets in Saku:

• Local specialty & terroir of Saku (佐久市): geothermal hot-spring (onsen) ryokan hospitality and mountain tourism alongside precision electronics manufacturing, clean technology, and regional commerce.
• Shinshu soba (buckwheat noodles) — regional specialty enjoyed across Saku (佐久市) and Nagano Prefecture.
• Oyaki (stuffed roasted buckwheat buns) — regional specialty enjoyed across Saku (佐久市) and Nagano Prefecture.
• Sanzoku-yaki (crispy garlic fried chicken) — regional specialty enjoyed across Saku (佐久市) and Nagano Prefecture.
• Shinshu miso & apples — regional specialty enjoyed across Saku (佐久市) and Nagano Prefecture.
• chestnut sweets in Obuse — regional specialty enjoyed across Saku (佐久市) and Nagano Prefecture.

If you are dining in Saku (佐久市) with food allergies or dietary restrictions, use our Japanese Phrasebook & Allergy Show-Cards at restaurants around Kitanakagomi Station (北中込駅) (0.7 km).

Where to Stay in Saku (佐久市)

Visitors staying overnight in Saku (佐久市) can look for business hotels, traditional ryokan, or family-run minshuku near Kitanakagomi Station (北中込駅) (0.7 km), or base at major rail hubs in Nagano (Nagano Station (Hokuriku Shinkansen) & Matsumoto Station (JR Azusa)) or neighboring Miyota, Komoro, Sakuho for quick train access into Saku. Compare hotel tiers and ryokan etiquette in our Japan Accommodation Guide.

Best Time to Visit Saku & Seasonal Highlights

Seasonal guide for Saku (佐久市, 684 m elevation at 36.2488°N, 138.4769°E): April for Matsumoto & Takato Castle blossoms; July–August for Kamikochi & Karuizawa highland hiking; October for Kiso Valley foliage; Dec–Mar for Hakuba, Nozawa & snow monkeys.

Wider sightseeing across Nagano Prefecture that pairs well with visiting Kasuga Onsen in Saku (佐久市) includes: Original black-walled Matsumoto Castle, Zenko-ji Temple in Nagano, Jigokudani Snow Monkey Park, Nakasendo post towns (Narai-juku, Tsumago, Magome), Kamikochi, and Hakuba/Nozawa Onsen.

Practical Travel Tips for Saku (佐久市)

• Tourist information (観光案内所) for Saku: Stop by the Kankō Annaijo desk at Nagano Station (Hokuriku Shinkansen) & Matsumoto Station (JR Azusa) or Kitanakagomi Station (北中込駅) (0.7 km) for local bus schedules to Kasuga Onsen and walking maps of Saku (佐久市).
• Cash & ATMs in Saku: Convenience stores and major hotels around Kitanakagomi Station (北中込駅) (0.7 km) accept international cards, while smaller eateries and shrines near Kasuga Onsen often prefer yen cash; 7-Eleven (Seven Bank) and Japan Post ATMs in Saku accept foreign debit cards.
• Local dining hours in Saku: Around Kitanakagomi Station (北中込駅) (0.7 km) and neighboring Miyota, Komoro, Sakuho, lunch service typically runs 11:30 AM–2:00 PM and dinner spots open around 5:30 PM with last orders between 8:00 PM and 9:00 PM.