We're excited to announce that Adventure World will be hosting the 'Reiwa 8 Shirahama Town 20th Birthday Celebration,' organized by Shirahama Town, Wakayama Prefecture, at our park!
　We welcome you to spend a special, smile-filled (happy) time with your friends and family at this once-in-a-lifetime '20th Birthday Celebration'.

[Reiwa 8 Shirahama Town 20th Birthday Celebration]
■ Date & Time　:　January 4th, 2026 (Sunday) (Reiwa 8)　3:30 PM～
　　　　　　　　(Park admission reception: 11:00 AM～)
■ Ceremony Venue　:　Big Ocean inside Adventure World
■ Target Audience　:　Those born between April 2nd, 2005 (Heisei 17) and April 1st, 2006 (Heisei 18), who are eligible for the 'Reiwa 8 Shirahama Town 20th Birthday Celebration', and their families will be invited for free.
■ Host　:　Shirahama Town
■ Cooperation　:　Adventure World
※On the day of the 20th Birthday Celebration, January 4th, 2026 (Sunday), the park will operate as usual.
※Event details may change due to future circumstances. In such cases, we will announce it on Shirahama Town's website.
※For inquiries, please contact the Shirahama Town Board of Education (0739-43-5830).

~Shirahama Town's 'Coming-of-Age Ceremonies' and '20th Birthday Celebrations' held at Adventure World so far~
　　The 2026 (Reiwa 8) event will be the 5th time it's held at the park.

　　October 24th, 2021 (Reiwa 3) - The Reiwa 3 Shirahama Town Coming-of-Age Ceremony was planned but held online due to the spread of the new coronavirus infection.
　　January 4th, 2022 (Reiwa 4) - Reiwa 4 Shirahama Town Coming-of-Age Ceremony
　　January 4th, 2023 (Reiwa 5) - Reiwa 5 Shirahama Town 20th Birthday Celebration
　　January 4th, 2024 (Reiwa 6) - Reiwa 6 Shirahama Town 20th Birthday Celebration
　　January 4th, 2025 (Reiwa 7) - Reiwa 7 Shirahama Town 20th Birthday Celebration