To summarize, it was a worthwhile trip. Our tour guide, Sister Li Jing, was very reliable, patient, and humorous. I originally felt a bit carsick, but listening to her talk and distract me was very helpful. The Frog Temple was very interesting. Two and a half hours in Yufuin wasn't enough time to explore everything. And then there was Umi Jigoku (Sea Hell). I initially thought it would be boring, and the online pictures didn't look great, but when I arrived, I found it to be a fairyland, a natural hot spring wonderland, truly magnificent. The rainy weather added a unique charm. Finally, a big thank you to our driver as well for his hard work.