Okinawa main island and miyako.

Hi. Just planning to go to Okinawa Naha and maybe miyako.

What’s everyone thoughts. Can I do 3 nights on Okinawa Naha and 3-4 nights on miyako island?
Or is that too short.

Or should I just stay in Okinawa for 5-6 nights. 2-3 nights around the Chathan and than the rest move somewhere like a beach resort and relax.