A high-altitude marshland at 1,400m above sea level in Numata City, Gunma Prefecture. With well-maintained boardwalks, it's easy to enjoy a leisurely stroll. In spring, alpine plants like skunk cabbage and Japanese buttercups bloom, creating a breathtaking spectacle!
Scenic Views
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Highlights
Skunk cabbage and Japanese buttercups, among other alpine plants, bloom profusely in spring.
Summer offers lush green grasslands and a refreshing breeze.
Autumn showcases breathtaking foliage in fiery reds and yellows.
Well-maintained boardwalks make for an easy stroll.
【Car】 Approximately 40 minutes from Numata IC on the Kanetsu Expressway.
【Bus】 Approximately 40 minutes from Numata IC on the Kanetsu Expressway via the Kanetsu Kanko Bus bound for Tamahara Kogen. Get off at the terminal stop. Show route
Op.Hours
Operating Hours: 9:00 AM - 5:00 PM
*Subject to change depending on the season
Cld.Days
Open every day
Fee
Admission Fee: Adult ¥500, Child ¥250
INFO
Parking is free.
Pets are allowed, but must be kept on a leash at all times.
Tamahara Marshland is a high-altitude marshland located at 1,400m above sea level in Numata City, Gunma Prefecture. The well-maintained boardwalk allows for easy access, even for wheelchair users. In spring, alpine plants such as skunk cabbage (Mizubasho) and Japanese buttercups (Ryukin-ka) bloom profusely, creating a scene resembling a flower field. The skunk cabbage is particularly stunning from late May to early June, with its delicate white flowers carpeting the landscape. Summer brings lush green grasslands and a refreshing breeze, perfect for a relaxing break in the shade. Autumn boasts breathtaking foliage, painted in vibrant reds and yellows. The peak season for autumn leaves is from mid-to-late October, where the colorful trees create a magical scene against the clear blue sky. Winter blankets the area in snow, creating a world of tranquil serenity. Although snowfall is heavy, access is still possible in winter with snow tires. A walk through the snowy landscape offers a unique charm.
Tamahara Marshland is a popular tourist spot offering a fulfilling experience of majestic nature in all four seasons.
Historically, a village named "Tamahara-mura" once existed here. However, in the 1950s, it was submerged due to dam construction. The current Tamahara Marshland is the site of this former village. Remnants of the village's history remain in the surrounding area. When visiting Tamahara Marshland, consider exploring these historical sites as well.
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