Stroll Through a Nationally Designated Historic Site with Stone Walls Remaining at the Summit
About this spot
A castle ruin from the Warring States period located on Kanayama, the symbol of Ota City. Designated as a national historic site, it features beautifully restored stone walls and the main approach that evoke the castle's former appearance. From the summit, you can overlook the Ota city area and the Kanto Plain, making it a spot where you can enjoy both history exploring and hiking.
Fireworks details
Name: 刀水橋花火大会
Date & time: 10/31 (Sat) Time TBA
Venue: 刀水橋周辺（利根川河川敷）
2026年10月31日(土)19時から開催される、利根川に架かる刀水橋周辺を彩る花火大会です。広々とした河川敷から花火が夜空に次々と打ち上がり、澄んだ晩秋の空気の中でくっきりとした花火を楽しめます。静かな川面に花火が映り込む様子も見どころのひとつです。フィナーレの連発が夜空を彩る瞬間は、この1日のクライマックスです。
Tips
荒天時は中止・順延となる場合があるため、当日の開催可否は主催者の発表で確認しましょう。終了後は周辺道路が混雑するため、少し余韻を楽しんでからの帰宅がおすすめです。10月末の夜はかなり冷え込むので、しっかりした防寒対策を。
Tips
About 10 minutes by car from Taiko-in. Since you'll be walking mountain trails, comfortable hiking shoes are recommended. As there are some uphill stretches to the observation spot, families with small children should take breaks along the way.
Best time to visit
Approximately 1 hour 45 minutes required. The clear afternoon air allows for far-reaching views.
Access & map
〒373-0027 Kanayama-cho, Ota City, Gunma Prefecture 40−106
Model course featuring this spot
2026 Tosui Bridge Fireworks Festival Full-Day Course
Gunma
Explore features & model courses
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