A combined pre-sale entry ticket for two of Ibaraki Prefecture's most popular attractions — Hitachi Seaside Park in Hitachinaka City and Aqua World Ibaraki Prefecture Oarai Aquarium in Oarai Town — goes on sale April 1, 2026, through Seven Ticket.
Located in the coastal Ibaraki region along the Pacific Ocean, these two destinations offer a striking contrast of natural scenery and marine wildlife. Hitachi Seaside Park is renowned for its breathtaking nemophila flower fields, while Aqua World Ibaraki Prefecture Oarai Aquarium is celebrated for its impressive collection of shark species. Together, they make for a compelling day trip or multi-day itinerary in the spring season.
The combo ticket allows visitors to skip the regular ticket lines at both facilities, making entry more convenient. The ticket can be used across multiple days or on a single day, giving visitors the flexibility to plan their visit however they like.
Seven Ticket Details
| Item | Details |
|---|---|
| Product Name | Hitachi Seaside Park × Aqua World Ibaraki Prefecture Oarai Aquarium Pre-Sale Combo Ticket |
| Sales Period | April 1 (Wed) – May 5 (Tue/Holiday), 2026 |
| Where to Buy | Seven Ticket only — available at multi-copy machines in 7-Eleven stores nationwide |
| Validity | Hitachi Seaside Park: April 3 (Fri) – May 6 (Wed, substitute holiday), 2026 / Aqua World Ibaraki Prefecture Oarai Aquarium: April 1 (Wed) – May 10 (Sun), 2026 |
| Prices | Adult (high school and above): ¥2,650 / Senior (65 and above): ¥2,460 / Elementary & middle school students: ¥900 / Young children (age 3 and above): ¥300 |
| Notes | Tickets are not available for purchase at the venue on the day. Validity periods differ between the two facilities — please use your ticket within the applicable period. Not valid during Aqua World Ibaraki Prefecture Oarai Aquarium's night hours. |
Hitachi Seaside Park

Hitachi Seaside Park features seasonal flowers and nature throughout the year. The highlight of the spring season is the approximately 5.3 million nemophila flowers that blanket Miharashi Hill in vivid blue — typically at their peak from mid-April to early May. The panoramic view where the sky, sea, and hillside all seem to merge into one is truly spectacular.
Aqua World Ibaraki Prefecture Oarai Aquarium

Aqua World Ibaraki Prefecture Oarai Aquarium is one of Japan's largest aquariums, with a particular focus on shark diversity — visitors can encounter a wide variety of shark species under one roof. Beyond the aquatic exhibits, the facility also offers live shows and hands-on programs that bring visitors closer to the ocean and its creatures.
Exploring the Surrounding Area

The Hitachinaka and Oarai area offers a variety of sightseeing options beyond the two main attractions, including fresh seafood restaurants, scenic coastal viewpoints, and accommodation with hot spring facilities. The combo ticket pairs well with a broader exploration of this stretch of the Ibaraki coastline during the spring travel season.