Osaka Aquarium Kaiyukan | Osaka

Osaka Aquarium Kaiyukan is a public aquarium located in the Tempozan Harbor Village area of Osaka, Japan.

It is one of the largest aquariums in the world, housing a diverse collection of marine life from the Pacific Rim.

Visual Characteristics

The aquarium building is a multi-story, cylindrical structure with a distinctive exterior resembling a ship's hull. Its facade is primarily dark blue and grey, with large, rectangular windows providing views into the exhibits. The central tank, the Pacific Ocean tank, is a massive acrylic structure measuring 34 meters long, 9 meters wide, and 10 meters deep, containing a simulated Pacific Ocean environment.

Location & Access Logistics

The aquarium is situated at 1-1-10 Kaigandori, Minato Ward, Osaka, 552-0022, Japan. It is approximately 4 kilometers southwest of Osaka Station. Access is via the Osaka Metro Chuo Line to Osakako Station, which is a 5-minute walk from the aquarium. Limited paid parking is available at the Tempozan Harbor Village complex.

Historical & Ecological Origin

Osaka Aquarium Kaiyukan opened on July 20, 1990. It was designed to showcase the diverse ecosystems of the Pacific Rim, with a focus on the Ring of Fire. The aquarium's design simulates various environments, from the Japanese forests to the Antarctic ice floes and the deep sea.

Key Highlights & Activities

Visitors can observe a whale shark in the central Pacific Ocean tank. The "Japan Forests" exhibit features a recreated Japanese temperate forest with otters and Japanese salamanders. The "Antarctic" exhibit displays penguins and seals. The "Deep Sea" exhibit showcases bioluminescent creatures. Guided tours are available, and feeding demonstrations occur at scheduled times.

Infrastructure & Amenities

Restrooms are located on each floor. The building provides climate-controlled environments. Cell phone signal (4G/5G) is generally available within the aquarium. Food and beverage options are available at the aquarium's cafe and in the surrounding Tempozan Harbor Village.

Best Time to Visit

Weekdays outside of Japanese national holidays and school vacation periods are recommended to avoid peak crowds. The aquarium is open daily, with hours typically from 10:00 to 20:00, though these can vary seasonally. No specific tide requirements are applicable as exhibits are contained.

Facts & Legends

The whale shark, Rhincodon typus, is the largest fish in the world and is the centerpiece of the aquarium's main tank. The aquarium's construction involved the use of 5,000 tons of acrylic for the main tank's viewing panels.

Nearby Landmarks

• Tempozan Ferris Wheel (0.1km North)
• Legoland Discovery Center Osaka (0.2km North)
• Universal Studios Japan (2.5km Northeast)
• Shitennoji Temple (4.0km East)
• Osaka Castle (4.5km East)