What you get
On Nov 13 (Ibaraki Prefecture Day) entry is half price for everyone, not just residents: adults ¥1,150, elementary/junior high ¥550, kids 3+ free.
Also: show an Ibaraki Airport boarding pass stub (within 3 months) for ¥2,100 adult entry year-round. The official page lists the discount for Nov 13 (Ibaraki Prefecture Day) without a year and says terms may change without notice; confirm on the official page before visiting.
Timeline
| Status | Upcoming |
| Starts | Nov 13, 2026 |
| Ends | Nov 13, 2026 |
Who can use it
Visitors and Residents. Visitors means short-term tourists. Check eligibility on the official source before booking.
Verify on the official source before booking: www.aquaworld-oarai.com. Last checked 2026-10-22. Waribiki Alert is not affiliated with www.aquaworld-oarai.com or any prefecture or agency, and we cannot apply, book or claim this deal for you.