群馬県片品名 ,Katashina, Gunma
Visit Sanjo Falls before crossing Ozegahara Marsh to Hatomachi Sanso. This route combines waterfalls, wetlands, and outstanding mountain scenery.
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Forecast near the start point

Hike from Hatomachitoge through Yamanohana to the summits of Mount Shibutsu and Mount Koshibutsu. The trail features rare serpentine alpine plants and panoramic views over the expansive Ozegahara Marsh.

Walk across Ozegahara, Japan's largest mountain marsh, on elevated wooden boardwalks. Seasonal highlights include skunk cabbage in spring, day lilies in summer, and vibrant autumn foliage.

Explore Ozegahara Marsh on a scenic loop from Hatomachi Pass via Yamanohana. Elevated boardwalks cross pristine wetlands known for spring flowers, summer blooms, and colorful autumn scenery.