Our tour guide, Zhou Yanfeng, was absolutely fantastic! He took us to the secret spot of Oyunuma in Hell Valley (the large bus couldn't get there, so we took a more maneuverable 9-seater car). The entire journey was very smooth, and we slept comfortably. He also introduced the characteristics of each attraction, and we had a great time exploring Otaru for the last hour and a half, which felt like plenty of time. We covered a total of 350 kilometers, circling the entire southern part of Sapporo. Thank you, tour guide! I highly recommend this tour; overall, the natural scenery of the national park and strolling along the Otaru Canal were both wonderful!