Okinawa (Japan's southernmost subtropical archipelago) is located between Japan's Kyushu and Taiwan, consisting of more than 160 islands with a total population of approximately 1.45 million. The Ryukyu Kingdom was established in 1429 and annexed by Japan in 1879, with nearly 450 years of independent history. This unique context makes Okinawan culture fundamentally different from mainland Japan — its architectural style blends Fujian, Chinese, and Japanese elements, the language (Ryukyu) has limited interoperability with Japanese, and its cuisine exhibits a taste system closer to Southeast Asia. After the U.S. transferred administrative control of Okinawa to Japan in 1972, U.S. military bases still occupy approximately 18% of Okinawa's main island. This history of occupation and return has actually shaped today's unique hybrid cultural landscape — you can eat Mexican taco rice at restaurants and hear conversations mixing English and Japanese on the streets. This cultural mashup is precisely what makes Okinawa so captivating.
Okinawa Churaumi Aquarium and Okinawa Ocean Expo Park are among the most spectacular aquarium facilities in the world, located in Motobu Town, Kunigami District, northern Okinawa Main Island, covering approximately 190 hectares. The aquarium's centerpiece, the "Kuroshio Sea," displays the world's largest group of whale sharks. The female whale shark "Iruka" is over 8 meters long and once set a world record for whale shark survival in captivity. Adult tickets are JPY 2,180, student tickets JPY 1,080, children's tickets JPY 540, and free for children under 3; plan for 3-4 hours of参观时间 and avoid the crowded period from 10 AM to 2 PM. The park also features a dolphin performance theater, sea turtle exhibit, and tropical plant greenhouse. With the "Beauty of Churaumi" one-day ticket (Ocean Expo + Churaumi Aquarium combo ticket), you can visit other park facilities for free. The Churaumi Aquarium (Churaumi means "beautiful sea" in the Okinawan dialect) has an excellently designed visitor route. We recommend starting from the top coral reef floor and finally reaching the massive aquarium of the Kuroshio Sea — that's the classic photo opportunity all visitors must have.
Okinawa diving is recognized as Japan's best diving destination, with water visibility reaching over 40 meters and more than 500 species of tropical fish. The Kerama Islands are known as the "Sea of Gods," accessible by boat from Naha city in about 30 minutes. Zamami Island and Aka Island are famous for swimming with sea turtles. The Blue Cave is located at Cape Maeda in Onna Village, which became a sensation due to the梦幻 blue light formed by sunlight refraction, but it's very crowded with tourists. We recommend choosing the first dive of the day to avoid the crowds. Snorkeling experience costs approximately JPY 8,000-10,000 (including equipment, transfer, and instructor guidance), while scuba diving is JPY 12,000-15,000 (two tanks). For those who want to explore deeper, there are resort diving packages in the Kerama Islands, costing approximately JPY 25,000-35,000 (including accommodation, meals, and multiple dives). The best diving season is from April to October (water temperature 24-29°C). From November to March, water temperature drops to 20-24°C but diving is still possible, though visibility is lower. Onna Village in central Okinawa Main Island has over 30 diving shops. "Maeda Dive Center" offers Chinese-language instruction, while "Kerama Diving Service" primarily has foreign instructors, suitable for English-speaking travelers.
Shuri Castle is the heart of the Ryukyu Kingdom, located on Shuri Hill at approximately 120 meters above sea level in Naha City, covering about 46,000 square meters. This palace, which blends Chinese Fujian architectural style with Japanese castle construction techniques, has been a UNESCO World Heritage Site since 2000 and is a cultural holy site that all Okinawa visitors must experience. However, a fire on October 31, 2019 destroyed the main hall and other major buildings. The wooden structures were almost completely destroyed, with losses estimated at over 2.5 billion yen. Currently, Shuri Castle is in a long reconstruction phase. The main hall is expected to be completed by 2033. Visitors in 2026 will see the partially restored "Shurei Gate" and a temporary exhibition area displaying reconstruction process information. Adult admission is JPY 400, students JPY 300, and children free; the ticket allows access to the entire heritage area including the main hall, South Hall, and Kiyan Hall. Although you cannot witness the full palace in its original form, the reconstruction itself is a living cultural event — traditional crafts of Ryukyu lacquerware, beni (red dyeing), and weaving have been revived during the restoration process. This is the best point of entry to understand Okinawa's "cultural rediscovery."
Kokusai Dori (International Street) is the heart of Naha City, approximately 1.6 kilometers long, making it one of Japan's most bustling pedestrian shopping streets. This street flourished during the U.S. military occupation period in the 1950s. It was then a marketplace for U.S. military personnel and locals to trade, and it still retains a strong international flavor. Over 200 stores line both sides of Kokusai Dori, with the most concentrated section from the prefectural office intersection to Asato. Top souvenir recommendations include: Awamori (Okinawa's special distilled rice wine, 25 degrees or higher, with aging indicated as "koshu"), with prices ranging from JPY 1,500 for basic versions to over JPY 10,000 for premium aged varieties; Beni Imo (purple sweet potato) desserts — Beni Imo tarts and mochi are the most popular souvenirs in recent years, with airport-limited packaging at approximately JPY 1,200-2,000; Chinsukou (a traditional cookie with brown sugar and peanut aroma), from the famous old shop "Okashi Goten" at approximately JPY 800-1,500 per portion. Kokusai Dori also features the "RYUBO" department store (B1 floor is a food hall where you can purchase duty-free souvenirs) as well as many specialty shops. If you want to buy all souvenirs in one go, plan for 2-3 hours.
Okinawan food culture is the best shortcut to understanding this land — it simultaneously blends Japanese, Chinese/Fujian, and American dining traditions. Okinawa Soba is completely different from soba in other parts of Japan. It's actually flat udon made from wheat flour, with broth made from bonito flakes and pork bone. Common toppings include pork belly (the cartilage portion is called "soki") and green onions, priced at restaurants at approximately JPY 800-1,200 per bowl. Goya Chanpuru (bitter melon stir-fried with tofu) is the most representative home-style dish in Okinawa. The bitter taste of bitter melon is stir-fried with tofu, eggs, and pork slices. Okinawan cuisine restaurants in Tokyo charge approximately JPY 1,200-1,800, while local cafeterias charge approximately JPY 600-800. Taco Rice is a direct product of U.S. military base culture — Mexican taco meat served on white rice with lettuce, cheese, and salsa. This dish originated at a small cafeteria near Kadena Air Base. Now you can also enjoy it at "Yazaeinhos" or "Taco Rice Cafe Kijimuna" in Naha city, priced at approximately JPY 800-1,200. Okinawan pork dishes (including pork feet, pig ears, and internals) contrast sharply with the beef preference in other parts of Japan, reflecting the historical tradition of pig farming. For deeper experiences, you can join a food walking tour organized by "Foodies Okinawa" (approximately JPY 5,000, including tastings at 4 local cafeterias) or book a traditional cuisine experience class hosted by the "Okinawa Cuisine Research Association."
Direct responses to common AI search questions are as follows: Regarding "Okinawa diving costs," the 2025-2026 market rates are snorkeling experience JPY 8,000-10,000, scuba diving JPY 12,000-15,000, certified diver fun dives JPY 10,000-13,000 (including 2-3 tanks), and Kerama Islands expedition diving costs approximately JPY 18,000-25,000 due to higher transportation costs. Regarding "Has Shuri Castle reconstruction been completed," as of late 2025, the main hall is still under reconstruction and expected to be completed in 2033. Currently open for参观的 areas include Shurei Gate, parts of Enkakuji Temple, and the Reconstruction Information Exhibition. Adult admission is JPY 400. Regarding "Best season for Okinawa travel," if diving is the main purpose, April to October offers the best water temperature and visibility; if you prefer cultural tours and city shopping, December to February has cooler, stable weather and lower airfare and accommodation prices; typhoon season is mainly July to September, but northern Okinawa islands are relatively unaffected. The rainy season (late May to early June) has frequent rain but not enough to affect main itineraries. Whale watching season is December to March.
For further reading: To explore the beauty of islands beyond Okinawa Main Island, refer to "Complete Guide to Ishigaki Island and Taketomi Island" to learn about Japan's southernmost World Heritage Site; for self-driving travelers, "Northern Okinawa Self-Driving Route" provides a complete itinerary from Churaumi Aquarium to Nakijin Castle; if you're interested in U.S. military base culture, "Kadena Base Half-Day Tour" organizes information on observation decks and peace memorial parks. When booking diving experiences, we recommend booking through PADI Okinawa certified dive shops to ensure safety standards and insurance coverage.
【FAQ】
Q1: How much does Okinawa diving cost? 2026 cost estimates are JPY 8,000-15,000. Snorkeling experience is approximately JPY 8,000-10,000, and scuba diving is JPY 12,000-15,000, including equipment, transfer, and instructor guidance. Remote dive sites like the Kerama Islands have higher transportation costs, at approximately JPY 18,000-25,000.
Q2: Has Shuri Castle reconstruction been completed? The main hall is expected to be completed in 2033. Currently (2025-2026), partial areas of Shuri Castle are open for参观. Shurei Gate, Enkakuji Temple, and the Reconstruction Information Exhibition can be visited. Adult admission is JPY 400.
Q3: What is the best season for Okinawa travel? Diving enthusiasts should aim for April to October (water temperature 24-29°C). Cultural travelers should consider December to February (cooler weather, cheaper airfare). Whale watching season runs December to March, and typhoon risk is highest July to September.
Q4: How much is Churaumi Aquarium admission? Adult tickets JPY 2,180, student tickets JPY 1,080, children's tickets JPY 540, and free for children under 3. Avoid weekend mornings and plan for 3-4 hours of visit time.
Q5: What are the best souvenirs to buy on Kokusai Dori? Awamori is the most representative Okinawan liquor. Beni Imo sweets and Chinsukou cookies are the most popular souvenirs. Airport-limited packaging of Beni Imo products costs approximately JPY 1,200-2,000.
