February 24th (Sat.) 　It was a fine day and I could see beautiful scenery of small Islands and green sea in front of our room. The location is perfect, but I had noise from the upstairs. It was very noisy because children were jumping again and again. My wife and I went out and took a walk near the hotel. It was very comfortable and we felt relaxed. 　We left for Gyokusen-doh which is famous for a limestone cave which is the second longest one in Japan. 　It took about one hour from the hotel to Gyokusen-doh by the Okinawa Express Highway. We bought a ticket and began to walk. It is a long walk way from the entrance to the exit. In the cave, the illumination light up was taken place. It was beautiful, but it looked like an artificial in a natural cave. After that, we dropped in Oh Island surrounded by coral reef located in the southern part of Okinawa Island. We took a glass boat to see corals and fishes. 　We had one hour free time reminded, so we visited the Himeyuri no Toh which is the tomb for high school students killed themselves during the World War �U. This was very sad story still reminded by Japanese people. We returned the rent-car office and then went back to the Naha airport. We took 15:35 flight bound for Haneda airport.