Yunishigawa Onsen in Nikko, Tochigi, transforms into a magical winter escape during the Heike Akari Festival. Thousands of bamboo lanterns and glowing lights recreate the elegance of the Heian era, lighting up snowy landscapes and hot spring villages. Visitors can enjoy peaceful walks, cultural beauty, and traditional irori dinners at charming ryokans. With its soothing hot springs, serene atmosphere, and artistic displays, the festival offers a calming, culturally rich winter experience.