The tour guide explained in Japanese and quite in details. The tour is definitely suitable for those who don’t drive as it covers some main tourist spots. I suggest to spend 3 hours at the Churaumi Aquarium as the park outside still has quite a few places to see. The time to spend at Ryuku Village can be cut short to about 40 minutes instead of 1 hour. Overall, the experience is pleasant and this tour is surely more worth than going by public bus by own self.