I visit there the other day.
Okinawa is very unique in southern atmosphere in Japan. (In particular, I was surprised by there are only two signals in Iriomote Island.)
You can experience crossing the sea by buffalo from Iriomote Island to Yubu Island.
In Taketomi Island, you can see traditional houses in Okinawa.
Kachashi is traditional dance in Okinawa.
You can play in some pub.
There are lion status in front of almost all buildings in Okinawa.
This is Schiesser, protective god in Okinawa.
"Chinsuko - ちんすこう" is famous souvenir in Okinawa.
I like the taste so much and bought many Chinsuko
I saw the light the reason why Okinawa is popular in sightseeing in Japan.
It's extraordinary funny.
I can recommend you to visit Okinawa once.