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The sprawling Ocean Expo Park in northern Okinawa brings together marine science, rich Ryukyuan culture, and plenty of family-friendly activities—all in one spot you can easily spend a full day exploring.

A couple in wedding attire stands on a sandy beach near a large rock at Okinawa Ocean Expo Park, overlooking clear blue-green ocean waters, with a cargo ship visible on the horizon under a vivid blue sky.

A Full Day of Nature, Culture, and Sea Life

If you’re planning a trip to Okinawa with kids, Okinawa Ocean Expo Park (Kaiyohaku Koen) should be high on your list. Located along the scenic northwest coast in Motobu, this sprawling park is a mix of marine science, botanical gardens, and cultural heritage.

What made the park so enjoyable was how smoothly everything was laid out. It’s stroller-friendly, clean, and filled with attractions for all ages. From dolphin shows to traditional Okinawan homes, the park delivers an experience that’s both educational and fun.

What Makes Ocean Expo Park Unique

A traditional Japanese wooden house with a tiled roof, surrounded by green bushes and trees, sits under bright sunlight near Okinawa Ocean Expo Park. The structure features open walls and a shaded porch area.

Built on the site of the 1975 Okinawa International Ocean Expo, the park was designed to celebrate and preserve oceanic culture. We appreciated how well it balances learning and play.

* If you visit with kids, plan for at least half a day there. Keep in mind that it takes almost one hour to drive from Naha to the park.

Ocean Expo Park Areas and Highlights

Here’s a quick guide to Ocean Expo Park to help you plan:

  • Churaumi Aquarium One of the most famous aquariums in Japan, home to whale sharks and manta rays (covered in a separate post).
  • Native Okinawan Village & Omoro Arboretum A peaceful, open-air museum with reconstructed Ryukyuan homes and gardens showcasing native plants.
  • Oceanic Culture Museum & Planetarium A small but engaging museum with exhibits on maritime life and a planetarium.
  • Emerald Beach A clean, calm beach with turquoise water and soft white sand.
  • Tropical & Subtropical Arboretum A shaded walking path through Okinawa’s lush plant life.

Tip: The park is large, and it can take more than 30 minutes to walk from the aquarium to the southern arboretum. If you have young children, consider bringing or renting a stroller.

Our Favorite Family Experiences

A dolphin leaps high above a blue pool during a show at Okinawa Ocean Expo Park. Trainers stand in the water, with the ocean and a distant mountain visible in the background under a clear sky.

Okichan Theater – Dolphin Show

This was the biggest highlight for our kids. The dolphins were playful and energetic, and the open-air theater had an unbeatable ocean backdrop.

Emerald Beach

Just a short walk from the aquarium, Emerald Beach offers clear, calm water and soft sand. Swimming is allowed from April to October, but we enjoyed relaxing here even in the off-season.

Sea Turtle Pool

Located in a quieter part of the park, this pool holds several sea turtle species. You can view them from above or through underwater glass windows.

Kids Adventure Land

Near the aquarium entrance is an open-air playground filled with climbing nets, tunnels, and obstacle courses. It’s a great stop for kids who need to run around and burn off some energy.

Native Okinawan Village

We wandered through eight recreated Ryukyuan homes and discovered what daily life was like in Okinawa’s past.

How to Get to Okinawa Ocean Expo Park

Bus

  • From Central Naha, look for one of the express bus services such as the Okinawa Airport Shuttle, the Yanbaru Express Bus, or Bus line 117. Ride the bus to the Kinen Kōen-mae (記念公園前) bus stop, which is the main stop for the Ocean Expo Park.
  • Total travel time: ~2 hours.

Car

  • From Central Naha Airport, it takes about 1.5 – 2 hours by car.

Pro Tip: If you’re not renting a car, consider staying overnight in Motobu to avoid a long return trip the same day.

Do We Recommend Okinawa Ocean Expo Park?

Children play on the grass near a blue net climbing structure in an outdoor playground at Okinawa Ocean Expo Park, with modern buildings and trees in the background under a partly cloudy sky.

Yes! Especially for families. Okinawa Ocean Expo Park offers a rare combination of hands-on learning, natural beauty, and cultural immersion in one spacious setting. You can visit a top-tier aquarium, walk through lush gardens, swim at the beach, and explore Ryukyuan traditions all in one day.

More to Explore Nearby

After spending the day at Okinawa Ocean Expo Park and the famous Churaumi Aquarium, explore more of the island’s scenic and cultural highlights.

  • Ryukyu Mura – Step into a recreated traditional village with live performances, hands-on workshops, and a glimpse into Okinawa’s Ryukyu heritage.
  • Yomitan Pottery Village – Visit this quiet hilltop village to browse handmade ceramics and meet local artisans in their studios.
  • Kokusai Dori – Head to downtown Naha for lively shopping, Okinawan snacks, and nightly street music along this popular “International Street.”
  • Okinawa Prefectural Peace Memorial Park – Reflect at this seaside park dedicated to the memory of those lost in the Battle of Okinawa, with sweeping views and a thought-provoking museum.

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