Come observe the giant tank - which recreates the rich marine environment of Izu, home to a wide variety of marine life — right from the water's surface!

• Program
• Price & rental fee
• Precautions
• Reservations

Program Contents

The Grand Aquarium at Shimoda Marine Aquarium features a massive tank themed around the waters of Izu, home to 10,000 specimens across 50 species, including fish, invertebrates, and seaweed. In this magical space, where colorful fish swim right before your eyes and seaweed sways gently, you’ll feel as if you’ve wandered into the real ocean.
All you need is a swimsuit and a towel!
After changing into a wetsuit and receiving a brief briefing from our staff, you'll finally head out to the giant tank. Anyone in elementary school or older can participate. Children will wear life jackets, so they can safely enjoy the underwater world even in areas where they can't touch the bottom. It's not just about "watching" — why not experience a special time where you can truly "feel" the Izu Sea?

Open period

Year-round (except on closed days)

Times

[Morning session] Meet at 8:15 AM, program starts at 8:30 AM, program ends at 9:45 AM
[Afternoon session] Meet at 10:30 AM, program starts at 11:00 AM, program ends at 12:15 PM

The time required

Approximately 1 hour and 30 minutes (including time for changing and the briefing)

Capacity

5 people per session

Age Limitation

Elementary school students and older

Need

• Swimsuit, towel (rental available for a fee)
• Waterproof cameras are permitted. (To prevent accidental ingestion by hammerhead sharks, please ensure your camera is attached to your wrist or similar with a strap so it won't fall off even if you let go with both hands.
  *Please note: We cannot be held responsible for any damage to the camera or loss of data due to submersion, nor for any loss if the camera is dropped into the water during the program. Please bring your camera at your own risk.

Others

• Changing rooms and showers are available.
• Valuables can be stored in lockers.

For customers who bring their own equipment

You are welcome to bring your own equipment.
Please note that since the program fee includes rental costs, there will be no discount even if you bring your own equipment. There is a risk of damage or breakage if your equipment gets caught on rocks or other objects. Please understand that we cannot accept any liability in such cases.
If your equipment is not suitable for use or you are concerned about potential damage, please use our rental service.

• Wetsuits: Only full-body wetsuits with a thickness of 5mm or more are permitted.
  *For your protection in the unlikely event of contact with fish or rays, thin wetsuits (3mm, etc.), wetsuit jackets, or rash guards are not permitted.
• Water shoes: Shoes with open-toe designs or made of mesh material are not permitted.

Price & Equipment rental fee

Price

7,000 yen per person
*Included: Equipment rental, insurance, instructor fee
*Not included: Entrance fee to Shimoda Floating Aquarium

Rental fee

Cancellation Policy

Precautions

• On the day of your reservation, please be sure to arrive by the designated meeting time.
• If you are late for the meeting time, you will not be able to participate. Please allow plenty of time for your visit.
• Please note that if you are unable to arrive by the start time due to unforeseen circumstances or traffic congestion on the day of the event, your reservation will be canceled.
• Cancellations made 2 days prior, the day before, or on the day of the event will incur a cancellation fee.
• If you cancel on the day of the event due to personal reasons, such as illness, a full cancellation fee will be charged. Please also note that no refunds will be issued if you are unable to enter the water during the program due to personal reasons.
• We cannot accommodate participants who have been drinking alcohol or appear to be under the influence on the day of the event. In such cases, the cancellation will be considered a cancellation due to the customer's circumstances, and a cancellation fee will be charged.
• Pregnant individuals and those with difficulty walking are not permitted to participate.

Reservations

Reservations can be made online or by phone starting 60 days prior to your scheduled date. Online reservations require payment via VISA or Mastercard. If you have any questions, please check our FAQ page For other inquiries, please contact us.