The best time to visit Manza Onsen is during the winter months, from December to March, and in autumn, specifically October and November.Winter is ideal for those who love snow and winter sports. The area is covered in deep snow, making it great for skiing and snowboarding. The hot springs are particularly inviting when surrounded by a snowy landscape, offering a unique and relaxing experience.Autumn, from October to November, is great for enjoying the vibrant autumn foliage. The mountains around Manza Onsen are ablaze with red, orange, and gold leaves, creating a stunning backdrop for outdoor activities like hiking.