Last Updated on 2026-06-03 by Tsubaki
Hi! I’m Tsubaki, a freelance contributing travel journalist who has lived in Japan for 10 years! When it comes to family-friendly attractions and aquariums near Tokyo, many people immediately think of Shinagawa or Ikebukuro. But if you’re looking for a destination where you can easily spend an entire day, from morning until night, without getting bored, I highly recommend Yokohama Hakkeijima Sea Paradise.
This isn’t just an aquarium. It’s an entire man-made island that combines aquariums, amusement rides, restaurants, shopping, and beautiful ocean views all in one place. You can see dolphins, beluga whales, and penguins, ride thrilling roller coasters, and even enjoy a seaside BBQ dinner in the evening. On a sunny day, the whole island feels like a mini seaside resort.
One of the best things about Hakkeijima is that admission to the island itself is completely free. You can decide whether to purchase aquarium tickets, ride passes, or combo packages based on your interests, making it an incredibly flexible destination for all types of travelers.
In this guide, I’ll introduce everything you need to know about Yokohama Hakkeijima Sea Paradise, including its highlights, ticket options, transportation, discount passes, and my personal recommendations for making the most of your visit.
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About Yokohama Hakkeijima Sea Paradise
Yokohama Hakkeijima Sea Paradise is a large marine-themed entertainment complex located on a man-made island in Kanazawa Ward, Yokohama, Kanagawa Prefecture. Since opening in 1993, it has remained one of the most popular marine theme parks in the Greater Tokyo area.
The island is completely surrounded by the ocean and covers a vast area. What makes it unique is its ability to combine aquariums, amusement rides, and a relaxing seaside resort atmosphere into a single destination.
Unlike a typical aquarium with just one main building, Hakkeijima consists of multiple attractions and themed facilities. Visitors can observe marine life up close, enjoy exciting rides, stroll along the waterfront, browse shops, and dine at various restaurants. Whether you have half a day or a full day available, there’s plenty to keep you entertained.
Another major advantage is that entry to Hakkeijima itself is free. Tickets are only required for specific attractions and facilities. This allows visitors to explore the island first and then decide which paid experiences they’d like to enjoy.
In other words, even without purchasing an aquarium ticket, you can still visit the island to take a walk, enjoy a meal, go shopping, or simply admire the ocean views. I’ll explain the various ticket options and passes later in this article.
>> Yokohama Hakkeijima Sea Paradise maps
Yokohama Hakkeijima Sea Paradise
Address: Hakkeijima, Kanazawa Ward, Yokohama, Kanagawa 236-0006, Japan（Google Maps）
Access: Approximately a 10-minute walk from Hakkeijima Station
Opening Hours: Vary by date; please check the official schedule before visiting
One-Day Pass Online: KKday｜Klook
Official Website
Commitment to Animal Welfare and Marine Research
In recent years, more visitors have started paying attention to whether animals in aquariums are being properly cared for. This is also something I personally care about.
Beyond showcasing marine life, Hakkeijima actively participates in marine research, conservation breeding programs, and educational initiatives. It is not simply an entertainment-focused facility.
The aquarium’s animal care practices comply with Japanese regulations and management standards. Large marine animals such as dolphins and beluga whales are cared for by professional teams responsible for habitat maintenance, water quality management, and health monitoring.
Some areas of the park also serve educational and research purposes, helping visitors learn more about marine ecosystems and conservation through exhibits, interactive experiences, and informative presentations.
This is one of the reasons I feel Hakkeijima differs from purely commercial entertainment facilities.
That said, everyone has different views regarding animal performances. Personally, I still tend to avoid shows that rely heavily on extensive animal training.
※Source: Official website (summary of past conservation and research efforts).
What Makes Hakkeijima Sea Paradise Special? Exploring Its Four Aquariums
While Hakkeijima Sea Paradise is famous for its thrilling roller coasters and amusement rides, its true highlight is a collection of four uniquely themed aquariums, each offering a completely different experience.
Aqua Museum
The Aqua Museum is the largest and most important aquarium in Hakkeijima Sea Paradise. It’s also where visitors typically exchange their tickets and begin their adventure around the park.
One of the biggest highlights here is the enormous main tank and marine life exhibition area. Visitors can watch massive schools of fish swimming overhead and get up close to popular marine animals such as seals, dolphins, penguins, and sea lions.
The building spans multiple floors, and the exhibits are surprisingly extensive. Personally, I found it much larger and more interesting than I had expected.
Each level has its own atmosphere, with different lighting and exhibit styles. Some areas genuinely feel as if you’ve stepped into an underwater world.
One exhibit that left a particularly strong impression on me was seeing a shark egg still in the incubation stage. Through the transparent egg case, you could actually see the baby shark swimming inside.
The first time I saw it, I was genuinely amazed. It suddenly made me realize how life gradually develops and takes shape. Although, I have to admit, the little shark looked a bit like an alien creature! haha
Admission: Approximately ¥3,500 for a single-aquarium ticket for adults.
If you’re planning to visit multiple aquariums or enjoy the amusement rides, I highly recommend purchasing the One-Day Pass instead, as it offers much better value.
* 3,500 JPY (≈ $21.88 USD / £16.28 GBP / €18.83 EUR)Dolphin Fantasy
Although smaller than the Aqua Museum, Dolphin Fantasy is famous for its beautiful semi-transparent underwater tunnel.
As you walk through the tunnel, dolphins glide gracefully above your head. Thanks to the abundant natural sunlight, the scenery becomes especially stunning on clear days.
Unlike many traditional aquariums that rely on dim indoor lighting, Dolphin Fantasy feels bright, airy, and almost magical. It’s also one of the most photogenic spots on the island.
Admission: Approximately ¥700 for adults.
* 700 JPY (≈ $4.38 USD / £3.26 GBP / €3.77 EUR)Umi Farm
Umi Farm offers something completely different from a traditional aquarium.
Its main focus is food education, helping visitors understand where the seafood they eat actually comes from and how it reaches the dining table.
Visitors can participate in hands-on activities such as fishing for horse mackerel (aji). Afterward, the fish can be prepared and fried on-site by staff, allowing guests to enjoy what they have caught themselves.
This makes it an educational experience for children, but honestly, adults will likely enjoy it just as much.
Because the facility is located outdoors, you can enjoy the ocean breeze while participating in the activities. The atmosphere feels completely different from the indoor aquarium exhibits.
Admission: Approximately ¥350.
Fishing activities and fish-frying experiences require additional fees.
Fureai Lagoon
Fureai Lagoon is designed as an interactive animal experience area.
Visitors can get closer to certain marine animals than in the other aquariums, and some zones even allow hands-on encounters and touch experiences.
Compared with large-scale performances, this area focuses more on creating opportunities for meaningful interactions between visitors and marine animals.
Some programs have limited capacity and require advance reservations, so it’s a good idea to check availability early if you’re interested.
Admission: Approximately ¥700 for adults.
* 700 JPY (≈ $4.38 USD / £3.26 GBP / €3.77 EUR)Thrilling Amusement Rides
Beyond its aquariums, Hakkeijima Sea Paradise is also home to a variety of amusement rides, including roller coasters, pirate ships, spinning attractions, and more.
The most famous attraction is undoubtedly the Surf Coaster Leviathan, a roller coaster that races directly over the ocean.
As the train speeds toward the shoreline, the experience feels both exhilarating and unique.
While it’s not as extreme as the record-breaking coasters at Fuji-Q Highland, the stunning sea views make it a memorable ride that’s suitable for both adults and older children.
Recommended Shows and Experiences at Hakkeijima Sea Paradise
One thing I highly recommend is checking the official website for the day’s show schedule before your visit.
Performance times can change depending on the season, weekday or weekend operations, and even weather conditions. If you don’t check ahead of time, it’s surprisingly easy to miss the show you were hoping to see.
Popular performances can also attract large crowds, so planning your route in advance will make your visit much more enjoyable.
>> Check the Daily Show Schedule on the Official Website
My Top Recommendation: The Penguin Parade
If I had to choose just one show to recommend, it would definitely be the Penguin Parade. It’s incredibly adorable.
During the event, staff members lead a group of penguins on a walk through the park. The penguins waddle right past visitors at surprisingly close range, creating a completely different experience from simply watching them behind glass.
The atmosphere is genuinely heartwarming and relaxing.
What surprised me most is that penguins actually walk much faster than I expected. One moment they’re beside you, and the next they’ve already waddled several meters ahead.
If you’re visiting with children, or if you’re simply an animal lover, this is definitely one of the must-see experiences at Hakkeijima.
A Memorable Pearl-Harvesting Experience
Another activity that many visitors overlook, but one that I personally found surprisingly fun, is the DIY pearl harvesting experience.
You’ll get to select an oyster, open it yourself, and reveal the pearl hidden inside. Afterward, you can choose to have the pearl transformed into jewelry such as a necklace, earrings, a ring, or a keychain for an additional fee.
Since every pearl differs in color, shape, and size, opening the oyster feels a bit like opening a mystery box. You never know exactly what you’ll get until the moment you see it.
The pearl-harvesting experience itself costs around ¥700 and usually takes less than 10 minutes.
If you’d like to turn your pearl into a piece of jewelry, there are various design options available, typically ranging from ¥1,500 to ¥3,000 depending on the style you choose.
❗️Cash Ony
The finished item is usually ready for pickup about an hour later, giving you plenty of time to continue exploring the island before returning for your personalized souvenir.
* 700 JPY (≈ $4.38 USD / £3.26 GBP / €3.77 EUR) * 1,500 JPY (≈ $9.38 USD / £6.98 GBP / €8.07 EUR) * 3,000 JPY (≈ $18.75 USD / £13.95 GBP / €16.14 EUR)
I chose a gold ring setting for my pearl, and I absolutely love how it turned out. It became one of the most memorable souvenirs from my visit.
Seaside Restaurants and All-You-Can-Eat BBQ
In addition to its aquariums and attractions, Hakkeijima Sea Paradise offers a variety of indoor restaurants and open-air dining spots where you can enjoy a meal while overlooking the ocean.
On a sunny day, the entire island has a relaxed seaside resort atmosphere that’s perfect for slowing down and enjoying the moment.
There are also several all-you-can-eat BBQ facilities available on the island.
These are ideal for family outings, group gatherings, or simply ending a fun-filled day with a leisurely dinner by the sea. The atmosphere becomes especially beautiful around sunset when the coastline is bathed in golden light.
During our visit, we chose the all-you-can-eat buffet at Ra Tarafuku, which costs ¥2,700 per person.
Since we had purchased a ticket package through KKday that included a ¥1,000 shopping voucher, we only needed to pay an additional ¥1,700, making it a surprisingly good value for the overall experience.
* 2,700 JPY (≈ $16.88 USD / £12.56 GBP / €14.53 EUR)Ticket Information and Money-Saving Tips
Because Hakkeijima Sea Paradise offers a wide range of attractions, there are several different ticket types available.
Generally speaking, visitors can choose between individual attraction tickets and various combination passes.
Single-facility tickets are ideal for travelers who mainly want to visit specific aquariums or enjoy only a few attractions.
Individual attraction tickets typically range from approximately ¥100 to ¥3,500, depending on the facility.
* 100 JPY (≈ $0.63 USD / £0.47 GBP / €0.54 EUR) * 3,500 JPY (≈ $21.88 USD / £16.28 GBP / €18.83 EUR)There are also several types of day passes available, including:
・Combined Aquarium + Ride Passes
・Aquarium Passes
・Amusement Ride Passes
Prices generally range from ¥2,800 to ¥5,700.
* 2,800 JPY (≈ $17.50 USD / £13.02 GBP / €15.06 EUR) * 3,500 JPY (≈ $21.88 USD / £16.28 GBP / €18.83 EUR)If you’re planning to visit multiple aquariums or ride several attractions, purchasing a pass is almost always the better value. Some rides can be fairly expensive when purchased individually.
Personally, I recommend going with the One-Day Pass, as it allows you to enjoy the park more freely without worrying about buying tickets for each attraction separately.
Main Ticket Options
・One-Day Pass
Includes admission to all four aquariums and unlimited access to participating rides.
Adults: ¥5,700
Children: ¥4,100
Preschool Children: ¥2,400
・Aquarium Pass
Includes admission to all four aquariums only.
Adults: ¥3,500
Children: ¥2,200
Preschool Children: ¥1,200
・Amusement Ride Pass
Unlimited access to participating attractions.
Adults: ¥3,200
Children: ¥2,750
Preschool Children: ¥1,650
・Evening Pass
Includes admission to all four aquariums and rides after late afternoon.
Adults: ¥3,800
Children: ¥2,500
Preschool Children: ¥1,600
・Evening Aquarium Pass
Includes admission to all four aquariums after late afternoon.
Adults: ¥2,800
Children: ¥2,400
Preschool Children: ¥850
Recommended Discount Ticket: KKday Package
If you’d like to save a little on admission, I recommend checking KKday before your visit.
One of the most attractive options currently available is a package that combines your admission ticket with a ¥1,000 shopping voucher.
When you do the math, the package effectively saves you around ¥500 compared to purchasing everything separately.
If you already plan to buy food, drinks, or souvenirs inside the park, it’s an easy way to reduce your overall expenses. The money saved could easily cover an ice cream, a drink, or even part of the pearl jewelry customization fee.
Another advantage is convenience. By purchasing an electronic ticket in advance, entry tends to be smoother and more hassle-free on the day of your visit.
Pre-book Your Yokohama Hakkeijima Sea Paradise One-Day Pass via KKday
How to Get to Hakkeijima Sea Paradise
Getting to Hakkeijima Sea Paradise is surprisingly easy. From central Tokyo, the journey typically takes around one hour.
You can take either the JR Line or the Keikyu Line to Shin-Sugita Station or Kanazawa-Hakkei Station, then transfer to the Yokohama Seaside Line. From there, simply get off at Hakkeijima Station and walk to the island.
The walk from the station to the entrance is short and pleasant. As you cross the bridge connecting the mainland to the island, you’ll already be treated to beautiful ocean views.
Yokohama Hakkeijima Sea Paradise
Address: Hakkeijima, Kanazawa Ward, Yokohama, Kanagawa 236-0006, Japan（Google Maps）
Access: Approximately a 10-minute walk from Hakkeijima Station
Opening Hours: Vary by date; please check the official schedule before visiting
One-Day Pass Online: KKday｜Klook
Official Website
How Much Time Should You Spend at Hakkeijima?
Personally, I’d recommend setting aside at least half a day, and ideally a full day, for Hakkeijima Sea Paradise.
The island is much larger than many visitors expect. If you want to explore the aquariums at a relaxed pace, watch some of the animal performances, enjoy a few rides, and sit down for a meal, you’ll quickly find that an entire day passes by surprisingly fast.
The atmosphere also changes beautifully toward evening. As the sun begins to set, the ocean views take on a completely different character, so if your schedule allows, it’s worth staying until after sunset.
From my own experience, I originally planned to spend only half a day at Hakkeijima before returning to central Yokohama for more sightseeing. However, once I arrived, I quickly realized that I had seriously underestimated its size. Between the aquariums, shows, attractions, and various hands-on experiences, there was more than enough to fill most of the day.
While Hakkeijima doesn’t have the massive crowds or extreme thrill rides of places like Disney or Universal Studios Japan, that’s actually part of its charm. The combination of aquariums, amusement rides, and scenic waterfront spaces creates a much more relaxed atmosphere.
Whether you’re visiting as a family, planning a date, or traveling with friends, it’s an excellent place to spend a fun yet leisurely day by the sea.
Final Thoughts
What makes Hakkeijima Sea Paradise so appealing is that it’s much more than just an aquarium.
Personally, I love the way it sits somewhere between a marine theme park and a seaside resort. When you need a break, you can relax by the water and enjoy the ocean breeze. When you’re hungry, there are plenty of restaurants to choose from. And if you’re looking for a little excitement, you can hop on a roller coaster overlooking the sea.
Compared to many large-scale theme parks, the overall pace here feels far more relaxed and enjoyable.
If you’re planning a day trip from Tokyo, exploring Yokohama, or searching for a destination that’s perfect for couples, families, or groups of friends, I highly recommend adding Yokohama Hakkeijima Sea Paradise to your itinerary.
Before you visit
be sure to check the daily performance schedule, and don’t miss the incredibly charming Penguin Parade. You might find yourself, as I did, spending an unexpectedly wonderful day on this island surrounded by the sea.
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Traveler’s Note:
The insights shared above are based on my personal experiences and subjective perspectives. When planning your trip, please consider current weather conditions and your own travel preferences.
Please note that all English articles on this site are AI-assisted translations of the original Traditional Chinese content. While every effort is made to ensure accuracy and natural flow, occasional nuances or expressions may differ. Thank you for your understanding.
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