Churaumi Aquarium Visitor Guide: Hours, Access & What to Expect

What to Know Before Visiting Churaumi Aquarium

Okinawa Churaumi Aquarium (沖縄美ら海水族館) is Japan's most-visited aquarium, located in Motobu Town (本部町) at the northern end of Okinawa's main island. The aquarium sits within Ocean Expo Park (海洋博公園), a 600-hectare coastal park that adds several free attractions to the visit — including a dolphin lagoon, sea turtle pool, and manatee pool.

The main draw is the Kuroshio Sea tank (黒潮の海), one of the world's largest aquarium tanks at 7,500 tons, home to whale sharks and manta rays. Note that the upper viewing course for this tank has been temporarily closed since March 2026 — the main viewing window and lower areas remain open.

The biggest logistical consideration is distance. Churaumi is roughly 2 hours from Naha by bus, so a visit requires planning around transport and timing. This guide covers the practical side — hours, how to get there, and how to structure your visit. For details on the tanks and exhibits, see our exhibit highlights guide. For ticket pricing and discount options, see our tickets and deals guide. For an overview of all Okinawa aquarium options, see our hub guide.

Opening Hours and Closures

Churaumi Aquarium operates on two seasonal schedules:

Period	Hours	Last Entry
October-February (regular)	8:30-18:30	17:30
March-September (peak)	8:30-20:00	19:00

According to the official Churaumi website, summer extended hours apply during peak periods — in 2025, the aquarium opened at 8:00 and stayed open until 20:30 in late July, extending to 21:00 throughout August.

The aquarium closes on the first Wednesday and Thursday of December each year for facility maintenance. This closure applies to the entire Ocean Expo Park, including the aquarium.

Ocean Expo Park's outdoor areas follow a separate schedule, generally opening at 8:00 during peak season (March-September) and 8:30 in the off-season.

Getting to Churaumi from Naha and Northern Okinawa

By Bus from Naha

The most common public transport option is Ryukyu Bus (琉球バス) route 120 from Naha Airport. According to Discover Okinawa, the journey takes approximately 2 hours and costs about ¥2,200 (~$15) one way.

From Nago Bus Terminal in northern Okinawa, routes 65 and 66 reach the aquarium in approximately 50 minutes for about ¥1,000 (~$7).

During peak summer season, advance bus booking is recommended as routes can fill up. The bus drops you at the Ocean Expo Park entrance, from which it is a short walk to the aquarium building.

By Car and Parking

Driving from Naha takes approximately 1.5 hours via the Okinawa Expressway, making it faster than the bus. Rental cars are widely available at Naha Airport and throughout the city.

A taxi from Naha to Churaumi costs approximately ¥15,000-20,000 (~$100-133) one way — an option worth considering for groups of three or four.

Timing Your Visit: Crowd Patterns and Best Times

Churaumi Aquarium gets busy, particularly during school holidays and weekends. The peak crowding window is 11:00 AM to 3:00 PM, when tour buses arrive and midday visitors fill the main viewing areas.

The two best strategies for avoiding crowds:

• Arrive at opening (8:30 AM): The first hour is noticeably quieter. You can see the Kuroshio Sea tank with relatively few people and move through the smaller exhibit halls at your own pace.
• Visit after 4:00 PM: Crowds thin considerably in the final hours, making late afternoon a quieter time to visit. Check our tickets and deals guide for details on any available discount options.

Weekdays are significantly less crowded than weekends and Japanese national holidays. If your schedule allows flexibility, a Tuesday or Wednesday visit will be noticeably calmer than a Saturday.

Summer is the busiest overall season, with Japanese school holidays (late July through August) bringing the highest visitor numbers. Spring and autumn offer pleasant weather with moderate attendance.

On-Site Navigation: Parking, Dining, and Ocean Expo Park

Free Parking and Where to Park

Parking at Ocean Expo Park is free — a significant advantage compared to many Japanese tourist attractions. The park has multiple lots, with P2 and P3 being closest to the aquarium entrance.

On busy days, the closest lots fill up by mid-morning. Arriving before 10:00 AM generally ensures a spot in P2 or P3. If those are full, further lots are available but require a longer walk.

Dining Options and Picnic Areas

The aquarium has on-site restaurants, but many visitors find the prices high for the portion sizes. Consider these alternatives:

• Pack a lunch: The park has designated picnic areas with ocean views — a pleasant option in good weather
• Eat before or after: Motobu Town has local restaurants with more reasonable pricing
• Convenience stores: Stock up at a konbini on the drive up if you want quick, affordable snacks

If you do eat on-site, the Ocean Expo Park restaurant near the dolphin lagoon tends to be less crowded than the aquarium's own dining options.

Ocean Expo Park: Free Attractions Beyond the Aquarium

Ocean Expo Park includes several free attractions that extend the visit beyond the aquarium itself:

• Dolphin Lagoon: Free dolphin shows are held several times daily (check the park schedule for current times)
• Sea Turtle Pool: Open-air pool where you can observe sea turtles up close
• Manatee Pool: One of few places in Japan to see manatees
• Emerald Beach: A public beach within the park, open during warmer months

Budget 4-6 hours if you plan to explore the aquarium and these outdoor attractions. The aquarium alone takes 2-3 hours at a comfortable pace.

Frequently Asked Questions

How long does it take to visit Churaumi Aquarium?

Allow 2-3 hours for the aquarium at a comfortable pace, covering all exhibit floors and the main Kuroshio Sea tank. If you want to explore Ocean Expo Park's free attractions — the dolphin lagoon, sea turtle pool, and manatee pool — budget 4-6 hours total. Families with young children often spend longer.

Can I do Churaumi as a day trip from Naha?

Yes, but it is a long day. The bus takes approximately 2 hours each way (about ¥2,200 one way), and driving takes roughly 1.5 hours. Leave Naha early to maximize time at the aquarium — arriving at opening (8:30 AM) by car means departing Naha by 7:00 AM. The day trip is feasible but tiring; staying overnight in Motobu or the northern coast is a more relaxed option.

What is the best time to visit to avoid crowds?

Arrive at opening (8:30 AM) or visit after 4:00 PM. The busiest period is 11:00 AM to 3:00 PM when tour buses arrive. Weekdays are significantly calmer than weekends and holidays. Avoid Japanese school holidays (late July through August) if possible — spring and autumn offer the best balance of weather and crowd levels.

Is parking free at Churaumi Aquarium?

Yes — Ocean Expo Park provides free parking across multiple lots. P2 and P3 are closest to the aquarium entrance. Arrive before 10:00 AM on busy days to secure a spot in the closest lots. Overflow parking is available further away but requires a longer walk.

How much does Churaumi Aquarium admission cost?

Adult admission is ¥2,180 (~$15) based on 2024 pricing. Entry to Ocean Expo Park itself is free, including the dolphin lagoon and turtle pool. No reservation is required — tickets are purchased on arrival. For discount options and advance purchase deals, see our tickets and deals guide.