日本未來開業與規劃中水族館｜截至 2026 年 3 月的關注項目
未來的水族館專案很有看頭，但資訊變化很快，因此不容易追蹤。有些專案已經有明確的開業年份與規模，另一些仍處於構想階段，細節尚未明朗。
本指南整理了截至 2026 年 3 月 24 日可透過公開資料確認的主要案例，並分為已確認的開業計畫、初期構想與大型整建。
本指南的架構
- Operating aquariums are covered elsewhere and are not mixed into this list
- Projects are grouped by how concrete they currently are
- Opening dates, scale, and details may change as plans move forward
一覽
- 最明確的開業計畫： the new aquarium at TOKYO GIANTS TOWN
- 最有特色的構想專案： Mirai Kaiyokan by aquazoo
- 最值得關注的整建專案： the new Kasai Rinkai Aquarium project
1. 已確認的開業計畫：TOKYO GIANTS TOWN 新水族館
The clearest upcoming aquarium project at the moment is the new aquarium planned for TOKYO GIANTS TOWN in Inagi, Tokyo. The official concept page states that the aquarium and food facilities are scheduled to open in 2027, and a later official news release says the aquarium is planned to open during 2027.
What makes it stand out is its scale and its mixed-use concept. Official information describes a facility with roughly 2,000 tons of total water volume and a main tank of about 1,300 tons. A January 2026 update also states that the aquarium is planning a coral-reef-themed main tank and coral propagation tanks.
2. 值得關注的構想專案：未來海洋館
A more speculative but highly distinctive project is Mirai Kaiyokan, introduced on the official aquazoo website. It is presented as a laboratory-style aquarium focused on the protection, care, and breeding of manatees.
The concept is especially notable because it aims to bring together the three living manatee species in one facility for both public viewing and research. At the time of writing, the official information does not make the future location or opening date concrete enough to call it a confirmed upcoming aquarium, so it is better understood as a concept-stage project.
3. 值得關注的整建專案：葛西臨海水族園
Not every major future project is a completely new aquarium. One of the most important redevelopment cases in Japan is the new Kasai Rinkai Aquarium project in Tokyo. According to the Tokyo Metropolitan Government's official redevelopment page, a new aquarium is being built on adjacent land next to the current site.
The official schedule points to a service start in September 2028. The new facility is planned at about 4,600 tons of total water volume, with updated exhibits and new learning and immersive features. The current glass dome building is also planned to be preserved after the new aquarium opens, making this a redevelopment story with architectural significance as well.
今後應關注的重點
- How firm the schedule is: an opening year is helpful, but an actual timetable is stronger
- How clearly the location is defined: confirmed sites and building scale matter
- How much official information exists: concept pages, government announcements, and project updates are more reliable than rumor-based reports
- Whether it is new or rebuilt: a major redevelopment can matter just as much as a brand-new aquarium
FAQ
What is the difference between a confirmed opening and a concept-stage aquarium?
A confirmed opening usually has a clearer opening schedule, project owner, and location. A concept-stage aquarium has a visible idea or vision, but the place, timing, or implementation details are still fluid.
When do ticket prices and opening hours usually become official?
In many cases, official ticket prices and opening hours are announced closer to launch. Earlier announcements often focus only on the concept, scale, or planned opening year.
Are redevelopment projects worth following too?
Yes. Even if a project is not a brand-new aquarium, a major redevelopment can significantly change the size, exhibits, and overall visitor experience.
所使用的公開資料
Summary
As of March 2026, the most concrete upcoming aquarium project is the new aquarium at TOKYO GIANTS TOWN. Mirai Kaiyokan is still best understood as a concept, but it stands out for its originality. Kasai Rinkai Aquarium is not a brand-new project, yet its redevelopment is large enough to matter just as much for future aquarium watchers.
接下來可以閱讀
If you want to explore operating aquariums now, head to the full directory. If you prefer theme-based comparisons, our other feature articles are a good next step.