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Nostalgia Garden (Komoro City, Nagano Prefecture)

2025 10/25
October 25, 2025
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Overview (history, characteristics, attractions)

Kaikoen is a castle park in Komoro City, Nagano Prefecture, and is a historical park built on the site of the former Komoro Castle (Komoro Castle Ruins). Remains of the castle's stone walls, earthworks, and main citadel remain within the park, and its greatest appeal is the way the charm of the castle coexists with the natural scenery of the four seasons, including cherry blossoms, azaleas, and autumn leaves. Although it is located close to the city center, it is dotted with attractions such as quiet walking paths, Japanese gardens, and Kaiko Shrine, and is popular among locals as a spot where you can experience literature (the scenery is known from Shimazaki Toson's poem "Komoro Naru...") and local history.

Highlights

  • Stone walls and moat remains: The stone walls and dry moats that give a glimpse into the castle's former structure have been well preserved and are a popular photo spot.
  • Nostalgia Shrine: You can enjoy worshiping at the shrine within the grounds and the atmosphere of the old buildings.
  • Garden, pond and promenade: The garden has a Japanese garden-style landscape and a promenade around the pond, making it perfect for a leisurely stroll.
  • Cherry blossoms (spring) and autumn leaves (autumn): The cherry blossoms bloom in spring, and the fiery autumn leaves are beautiful in autumn, so the park is bustling with visitors during the season.
  • View from the castle ruins: From the high ground within the park, you can see the city and surrounding mountains, and enjoy different views depending on the season.

Access (nearest station, transportation, etc.)

  • Nearest station: Komoro Station (a few minutes walk) — Located within walking distance of the center of Komoro City. Approximate walking time from the station is about 3-10 minutes.
  • Access by train: It is convenient to take the conventional train line from Nagano or Karuizawa. From Tokyo, the most common route is to take the Shinkansen to Karuizawa or Sakudaira, then take the conventional or local train line to Komoro.
  • Access by car: Accessible via the Kan'etsu Expressway and Joshin'etsu Expressway. There are parking lots in the vicinity, but they can get crowded during the cherry blossom and autumn foliage seasons.
  • Local Transportation: Special shuttles and tourist buses may operate during the tourist season. Please check with the tourist association or official information in advance for details.

Estimated stay (estimated time required)

If you want to stroll around the park at your own pace and visit the main sights, it will take about 30 minutes to an hour and a half. If you plan on taking photos, taking a break in the gardens, and visiting the surrounding historical sites, you should allow around two hours. Please note that travel times may increase during peak seasons.

Nearby spots

  • Shopping districts and soba restaurants around Komoro Station: There are many restaurants where you can enjoy local delicacies (such as Shinshu soba).
  • Karuizawa (accessible by car or train): Enjoy shopping and strolling around the villa area.
  • Nearby hot spring resorts: There are many day-trip bathing facilities and hot spring inns scattered around the area, making it convenient for visiting hot springs after a stroll.
  • Historical and cultural facilities: There are city museums and spots where you can visit historical sites nearby (please check the tourist information for details).

Things to be aware of (crowds, manners, seasonal precautions, etc.)

  • Crowds: The park is especially crowded during the cherry blossom and autumn foliage seasons. Parking lots and paths within the park can get crowded, so it's best to consider using public transportation or visiting early in the morning or evening.
  • Admission fees and opening hours: There may be an entrance fee to the park. Please check the official website in advance for opening hours, fees, seasonal events, etc.
  • Accessibility: There are many stone steps, steep slopes, and uneven surfaces, so we recommend wearing comfortable walking shoes. There are also some areas where it may be difficult to move around with a wheelchair or stroller.
  • Manners: Please observe basic manners such as not damaging plants or historical sites, taking your trash with you, and following the rules for pets (keeping them on a leash, etc.).
  • Seasonal precautions: In winter, snow and ice can make the trail slippery. Please take measures to protect yourself from the cold and prevent slipping. Also, during the spring cherry blossom season, rain and strong winds can affect the best time to see the plants.

*The above information may change depending on the time of visit and operating conditions. Please check the official Komoro City Tourist Association or Kaikoen website in advance for the latest opening hours, event information, and transportation information.

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