Nikko's renowned autumn foliage spot, Irohazaka, is a must-visit destination. The slope features two roads: the Second Irohazaka for uphill travel and the First Irohazaka for downhill journeys. Together they offer 48 curves, allowing travelers to admire the vibrant fall colors from their car windows. Due to the elevation differences, the hues gradually spread from the mountain peaks to the base during autumn. The sight of red and yellow mountainsides, against a backdrop of rolling hills, showcases Nikko's unique autumn charm. Typically, the best time to enjoy this breathtaking scenery is from mid-October to early November.

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