From January 31, 2026 (Saturday) to February 14, 2026 (Saturday), Maxell Aqua Park Shinagawa (Location: 4-10-30 Takanawa, Minato-ku, Tokyo, inside Shinagawa Prince Hotel; Director: Akiko Yamada) will host "Aqua Valentine Week," an event featuring Valentine's-themed storytelling and displays highlighting the charm of marine life.
Valentine's Day has become not only an occasion to express love to someone special, but also a time to show gratitude to those around us. Under the theme "Let's Express Our Gratitude," this event features special biological explanations by the animal care staff, who will present food gifts and share insights about the animals while expressing their daily appreciation. Additionally, romantic music accompanies a fantastical jellyfish tank display bathed in enchanting lights, and a special plan allows guests to enjoy a unique experience in the aquarium after closing on Valentine's Day itself. The event focuses on the love between animals and the bond between creatures and staff, delivering heartwarming moments.
The ongoing winter event "SNOW AQUARIUM by NAKED" gains Valentine elements for an enhanced winter experience at Aqua Park. Amid beautiful winter landscapes created with digital technology, a variety of heartwarming content offers a relaxing time with loved ones.
1. Special Biological Explanations Themed "Let's Express Our Gratitude" - Valentine's Version
Penguin Wild Live Viewing
This Valentine's-themed biological explanation focuses on the relationships between penguin pairs. Alongside feeding commentary, the session introduces their breeding mechanisms in an easy-to-understand manner, including courtship behavior, nest building, and how they carefully protect their eggs.
Guests can observe pair-specific behaviors and bonds up close. At the end, staff present ice treats and feeders (feeding items), allowing visitors to enjoy watching them eat.
Time: 10:30 AM (approximately 10 minutes)
Otter Wild Live Viewing
This session explains the relationship and breeding ecology of the otter pair "Mitsuba & Taiyou" in an accessible way. Using their dexterous front paws and impressive physical abilities, the otters demonstrate finding heart-shaped stones from the bottom of the tank and handing them to staff in honor of Valentine's Day. Watch for their excellent vision that allows them to clearly distinguish objects underwater, and the skillful technique they use to carry stones. The finale features the adorable yet powerful sight of them devouring the food gifts.
Time: 12:30 PM (approximately 10 minutes)
Seal Wild Live Viewing
Focusing on the differences between males and females and how to distinguish them, this presentation introduces the personalities and ecology of female Yumi and male David in an easy-to-understand manner. They showcase their physical prowess by skillfully using their necks and snouts to deliver heart-shaped rings to the animal care staff. The finale features heart-shaped ice treats filled with their favorite fish. Observe their adorable gestures as they melt the ice and skillfully extract the food.
Time: 3:30 PM (approximately 10 minutes)
2. A Romantic Space for Healing Time - Jellyfish Tank Display Wrapped in Fantastical Light
Jellyfish Rumble Valentine Display
A vast jellyfish exhibition space featuring seven cylindrical tanks and a symbolic all-crystal tank. Guests can view beautifully and gracefully drifting jellyfish in each tank.
During the event period, a special Valentine display takes place. In sync with ballads played by string instruments, pink-themed lighting flickers and glows, creating a romantic atmosphere that enhances the charm of the jellyfish.
3. Special Plan "Valentine Night" - Spend a Special Moment with Someone Important in the Aquarium After Hours
Special Plan "Valentine Night"
A one-night-only special event limited to 200 guests, offering access to the aquarium after closing, including the night dolphin performance "BRIGHT CRYSTAL" and aquarium viewing. Guests may bring camera tripods, personal chairs, and personal rugs. In the tunnel-shaped tank "Wonder Tube," which transforms into a blue, fantastical illuminated space at night, a live string trio performance will also take place. A special Valentine Night exclusive drink is also available. Spend a once-a-year heartfelt night in the romantic "sea world" created by marine life and enchanting lighting.
Date: February 14, 2026 (Saturday)
Time: 8:15 PM to 10:00 PM (Last entry 8:45 PM)
Price: ¥4,500 (Ages 4 and up)
Includes: After-hours aquarium admission + Live string trio performance at "Wonder Tube" + Night dolphin performance "BRIGHT CRYSTAL" + One drink
Special Privilege: Guests may bring personal chairs, personal rugs, and camera tripods.
※ Usage areas are restricted.
Basic Information
Operating Hours
Event Period: January 31, 2026 (Saturday) to February 14, 2026 (Saturday)
10:00 AM to 8:00 PM (Last entry 7:00 PM)
※ On February 14 (Saturday), the aquarium will close at 7:30 PM due to the "Valentine Night" event.
Admission Fees
※ High school student discount available (¥1,800)
※ Attractions (2 types) are an additional ¥500 each (per ride).
