The last time I went to this place — 2 years ago
If you are after nightlife, then this is not the place for you. If you enjoy scenery, fab views, beaches, sand, rainforest, wonderful people, then go. Bit of an effort to get there if don’t speak Japanese. Can get a return ferry ticket from RKK Lines (cheaper if do) from Naha to Ishigaki. Ferry leaves Monday night and arrives Tuesday morning (only leaves Ishigaki Tuesday and arrives Wednesday morning). Then follow everyone else and get a wee boat to Iriomote (again discounts if get return ticket). Recommend stay Irumote-So Youth Hostel close to Funara Port rather than the other YH 20 minutes walking distance away. For 300 Yen more, you get a better quality hostel on a hill with fabulous views, as well as breakfast and dinner, and only have to share with 1 person. The staff put on sake every night at 8pm except Sunday. Great way to meet Japanese people staying there. Get a 3 day bus pass from the Green bus for 1000 Yen. Can also hire a car for around 5000 Yen for the day, including insurance.