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Hitachi Seaside Park – Nemophila Blue Hills, Kochia Red Fields and Fun Activities

Hitachi Seaside Park – Nemophila Blue Hills, Kochia Red Fields and Fun Activities
Hitachi Seaside Park in Ibaraki is famous for its rolling hills of baby blue nemophila in spring and bright red kochia bushes in autumn, creating some of Japan’s most photogenic landscapes. This guide walks you through the best seasons and flower areas, viewpoints for great photos, cycling routes and attractions, opening hours, entrance fees and how to access the park from Tokyo and nearby coastal towns.

Highlights

Hitachi Seaside Park Overview

Hitachi Seaside Park is a national park of about 350 hectares, famous for its blue nemophila in spring and red kochia in autumn, plus a wide range of activities.

Nemophila Season (Miharashi Hill)

Miharashi Hill turns vivid blue with about 5.3 million nemophila flowers. The best time is typically mid-April to early May.

Kochia Season (Miharashi Hill)

Kochia on Miharashi Hill often reaches its deepest red around mid-October, and you can also enjoy the color shift from green to red (around late September to early October).

Flowers Through the Year

Spring features about 250 tulip varieties; summer includes sunflowers and zinnias; autumn brings cosmos; and winter can feature pansies and violas.

Things to Do

Beyond Pleasure Garden rides, there’s a roughly 13 km cycling course, reservation-based BBQ options, and nature walks around the park.

How to Get There

From Katsuta Station, it’s about 15 minutes by bus to Hitachi Seaside Park. By car, it’s right by Hitachi Seaside Park IC, and you can use the large parking areas.

Tickets & Admission

Standard admission is 450 yen for adults (high school and up). In some busy seasons, a seasonal surcharge applies and the total can be 800 yen. Elementary and junior high students are free.

For the latest information, please refer to official announcements or check on site.

What Is Hitachi Seaside Park in Ibaraki? A Must-Visit Flower Park Travel Guide

Hitachi Seaside Park (Kokuei Hitachi Kaihin Kōen) in Hitachinaka City, Ibaraki Prefecture, is a vast national park spanning about 350 hectares (with roughly 215 hectares open to visitors).

It’s a popular spot where you can enjoy stunning seasonal flowers and plenty of activities.

In spring, blue nemophila blanket the hills, and in autumn, kochia turn a vivid red—creating picture-perfect landscapes that look like a painting.

The nemophila scenery has even been featured by overseas media, attracting many visitors from Japan and abroad.

With an amusement park, cycling, barbecues, and more, it’s also great for families and couples—and you can easily spend a full day here.

In this article, we’ll walk you through the top things to see at Hitachi Seaside Park, how to get there, and useful tips for your visit.


Top Things to See at Hitachi Seaside Park

Spring Best View: Nemophila at Miharashi Hill

If you’re visiting in spring (mid-April to early May), don’t miss the nemophila fields spread across “Miharashi Hill.”

Across about 4.2 hectares, around 5.3 million tiny blue flowers bloom in full, blending with the blue of the sky and sea for a dreamy, unforgettable view.

The nemophila variety is “Insignis Blue,” an annual plant native to North America.

Because this is peak season, it can get crowded—so weekdays and early mornings are your best bet.

The official website publishes crowd forecast calendars and parking availability.

Checking in advance helps you enjoy the park more smoothly.

Autumn Must-See: Kochia in Fall Colors

In autumn (around mid-October), kochia turn bright red and paint Miharashi Hill in dramatic color.

In summer (mid-July to late September), you can enjoy kochia in a vivid lime green.

As autumn approaches, you’ll also see beautiful gradients as the color shifts from green to red.

By late October, the plants change to a golden hue—another reason kochia are loved for showing the seasonal transition.

Around the kochia hill, there are many great photo spots, making it popular on social media as well.

In some years, a “Kochia Light-up” event may be held in October.

Seasonal Flowers Throughout the Year

Beyond nemophila and kochia, the park offers a wide variety of flowers by season.

  • Spring (late March to mid-April): About 1 million daffodils spread beneath the pine grove, followed by tulips—about 260,000 blooms across roughly 250 varieties—at “Tamago no Mori Flower Garden (Tamago no Mori Furawā Gāden).”
  • Summer (July to August): Sunflower fields and bright zinnias shine. At the Hitachi Rose Garden, you can also enjoy roses—about 3,400 bushes across roughly 120 varieties.
  • Autumn (September to October): Cosmos swaying in the breeze are wonderfully soothing.
  • Winter (December to February): Pansies and violas add color, and you can enjoy a crisp winter stroll.

Pleasure Garden and Activities

Inside the park, you’ll find the amusement area “Pleasure Garden,” with a wide range of attractions such as a giant Ferris wheel and roller coasters.

From the Ferris wheel, you can look out over the Pacific Ocean and the Kantō Plain, and on clear days, even Mount Tsukuba.

These activities are also popular:

  • Cycling: A cycling course of about 13 km is available, and rental bikes (around 1,400 units) can be used.
  • Seaside Train: A convenient ride that loops the park in about 40 minutes—great for getting around the large grounds.
  • Barbecue: Enjoy a meal in nature at the barbecue area.
  • Forest Athletics: A kids’ play-and-obstacle area that’s popular with families.


How to Get to Hitachi Seaside Park

By Train and Bus

  1. Take the JR Jōban Line and get off at Katsuta Station (Katsuta-eki).
  2. From Katsuta Station East Exit, bus stop No. 2, board an Ibaraki Kōtsū bus bound for “Kaihin Kōen Nishiguchi” (Seaside Park West Gate) or “Kaihin Kōen Minamiguchi” (Seaside Park South Gate). It takes about 15–20 minutes.

During peak nemophila and kochia seasons, extra buses may operate.

Some highway buses from the Tokyo Station area also stop at “Kaihin Kōen Nishiguchi.”

By Car

  • Via the Kita-Kantō Expressway Hitachinaka IC and the Hitachinaka Toll Road, it’s right by the Hitachi Kaihin Kōen IC.
  • If using the Jōban Expressway, it’s about 15 km from the Hitachi-Minami-Ōta IC.
  • Parking is available at the West Parking Lot (about 2,000 cars), South Parking Lot (about 2,000 cars), and Kaihin-guchi Parking Lot (about 350 cars).
  • Standard car parking is 600 yen.

From the Airport

  • From Narita Airport, it’s about a 2-hour drive.
  • If using public transportation, you can access the area via the JR Jōban Line.


Practical Visitor Tips for Travelers

Opening Hours and Admission Fees

  • Hours: Vary by season (e.g., 9:30–18:00), depending on the time of year.
  • Closed Days: Vary by season, such as Tuesdays.
  • Admission: Adults (high school age and up) 450 yen, seniors (65+) 210 yen, junior high and younger free (seasonal surcharges may apply).

Facilities and Services Inside the Park

Cafés and restaurants are scattered throughout the park, offering dishes made with local ingredients.

Original menu items—like sweets made with dried sweet potatoes and even a blue curry inspired by nemophila—are also popular.

There are picnic areas as well, so you can spread out a packed lunch.

Wheelchair-accessible restrooms, diaper-changing tables, and nursing spaces are available.

For international visitors, there are information displays in English, Chinese (Simplified and Traditional), Korean, Thai, and Vietnamese—making it reassuring for travelers from abroad.

Some facilities support cashless payments (credit cards, transit IC cards, e-money).

How to Avoid Crowds

During peak nemophila and kochia seasons—especially Golden Week and October weekends—the park can get extremely crowded.

Visiting on weekdays or arriving in the morning right after opening is recommended.

You can check the official crowd forecast calendar and parking availability, so be sure to look ahead.

Nearby Places to Visit

  • Nakaminato Fish Market (Nakaminato Osakana Ichiba): A market where you can enjoy fresh seafood—conveyor-belt sushi and seafood rice bowls are especially popular.
  • Ajigaura Beach (Ajigaura Kaigan): A beautiful coastline perfect for swimming, a walk, or a relaxing seaside break.


Summary

Hitachi Seaside Park is a stunning destination known for seasonal flowers and wide-open nature.

In particular, spring nemophila (mid-April to early May) and autumn kochia (mid-October) are highly popular with travelers from Japan and overseas.

With plenty of space to enjoy nature and create special moments with family or friends, it’s well worth visiting—especially since it’s about a 2-hour trip from Tokyo.

If you’re traveling in Ibaraki, be sure to add Hitachi Seaside Park to your itinerary!


Frequently Asked Questions

A. It’s a national park where you can enjoy seasonal flower fields and long walks around spacious grounds. Windy days are common, and even at peak bloom it can feel cooler than expected, so a light jacket helps. Distances inside the park are long, so leaving extra time in your schedule is reassuring.
A. The standard opening hours are generally 9:30–17:00, and the park is closed on Tuesdays (which can vary by season). Bus lines on the way home can get crowded in the late afternoon, so returning toward the exit area in the last 30 minutes helps you leave smoothly. Because the sea breeze can change how cold it feels, a light jacket can keep you comfortable all day.
A. Regular admission is ¥450 for adults, and during peak seasons the seasonal price may be higher, sometimes around ¥800 for adults. On busy days, buying in advance or entering earlier can shorten travel time to the flower fields. When it’s crowded, your choice of gate affects walking distance, so check the map and confirm your destination.
A. Parking for standard cars is ¥600. If your main goal is the flower fields, choosing the closest gate reduces walking, so deciding your “top priority for today” before entering helps efficiency. Distances inside the park are long, so leaving extra time in your schedule is reassuring.
A. From Katsuta Station, you can take a local route bus to the park. On peak-bloom days, lines are common, so taking an earlier bus on the way in and shifting your return time a bit can increase your chances of getting a seat. Because the sea breeze can change how cold it feels, a light jacket can keep you comfortable all day.
A. The park is large, and even a one-way walk to the flower fields can add up. If you want to save energy, using rental bicycles or the in-park bus helps you spend more time on photos and can improve overall satisfaction. When it’s crowded, your choice of gate affects walking distance, so check the map and confirm your destination.
A. There are dining options inside the park. Peak time is around noon, so having an early lunch in the 11 o’clock hour or a later lunch around 3 p.m. makes it easier to find seating and preserves time at the flower fields. Distances inside the park are long, so leaving extra time in your schedule is reassuring.
A. You can store luggage and use strollers, making it easier to visit with children. Along the coast, sun can be strong, so using hats and sunscreen early helps reduce kids’ fatigue. Because the sea breeze can change how cold it feels, a light jacket can keep you comfortable all day.

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