Naha is the capital and the largest city in the Okinawa Prefecture, which is made up of more than 150 islands. This part of Japan was once an independent entity – the Ryukyu Kingdom. Learn about its fascinating history at the Okinawa Prefectural Museum and discover traditional Okinawan crafts at locations in the city like Naha City Traditional Arts & Crafts Center. If you’re up for a day trip, visit the ruins of Nakijin Castle less than 60 miles north – you’ll find much to explore on a trek through the grounds of this beautiful UNESCO World Heritage site. Also nearby is the Churaumi Aquarium, where two huge whale sharks and a delightful dolphin show are among the highlights.