[Kamogawa Sea World] Avoid the daytime heat this summer and fully enjoy the aquarium after closing! "Aquarium Exploration Plan" & "Night Adventure" to be held

Kamogawa Sea World, a core facility of Grandvista Hotel & Resort Co., Ltd. (Headquarters: Chiyoda-ku, Tokyo; President: Yukio Arai), will hold two events, the "Aquarium Exploration Plan" and "Night Adventure," within the aquarium after closing hours from Saturday, July 4, to Monday, August 31, 2026.

① Aquarium Exploration Plan (Operating Hours: 16:45 - 19:45)

*Please see the overview for details such as operating dates.

The "Aquarium Exploration Plan" allows participants to avoid the daytime heat and engage in hands-on experiences at the aquarium after closing, from dusk into the night. This approximately 3-hour day trip plan includes a backstage tour of the aquarium, a "Beluga Touch" experience where you can touch the forehead of a beluga whale, and dinner at the restaurant "Ocean." It's a special plan that offers a premium ticket-like experience, allowing visitors to enjoy the aquarium all day long with a "1Day Ticket" valid from daytime, a guaranteed parking space in the adjacent lot*1, and a complimentary "Jacquard Towel," making it popular for enjoying the facility until night.

② Night Adventure (Operating Hours: 1-hour course per group within 20:00 - 21:20) *Please see the overview for details such as operating dates.

The "Night Adventure" takes about an hour to tour the aquarium after closing, observing the sleeping animals with a guide from the animal keepers. You can observe how orcas and belugas, who are active in daytime performances, spend their nights. With explanations from the keepers, it's also recommended as a subject for independent research.

Reservations for the "Aquarium Exploration Plan" will begin at 9:00 AM on Friday, June 12, 2026, via Google Forms on the official website. Participants of this plan can make a先行 reservation for the "Night Adventure" as an option (excluding July 4, 5, 11, 12). Reservations for the "Night Adventure" alone will be accepted via the main phone line starting at 10:00 AM on Wednesday, July 1, 2026.

This summer, avoid the daytime heat and spend a fulfilling time at Kamogawa Sea World at night.

Details of the Aquarium Exploration Plan (Operating Hours: 16:45 - 19:45)

Operating Dates: July 4 (Sat), 5 (Sun), 11 (Sat), 12 (Sun), 18 (Sat), 20 (Mon, Holiday), 25 (Sat), 26 (Sun), 27 (Mon), 2026; August 1 (Sat) - 6 (Thu), 8 (Sat), 9 (Sun), 16 (Sun) - 19 (Wed), 22 (Sat) - 24 (Mon), 29 (Sat), 30 (Sun) - Total 26 days

Duration: Approximately 3 hours

Participation Requirements: Adults must accompany individuals under 18 years of age.

Capacity: 60 people per day (minimum 15 participants required)

*Lottery will be held if applications exceed capacity.

Fees:

Adult (High School Student and above): General Participant ¥11,000 / DDC Member ¥10,000

Child (Elementary and Junior High School Student): General Participant ¥9,000 / DDC Member ¥8,000

Toddler (Ages 4 to Pre-school): General Participant ¥8,000 / DDC Member ¥7,000

*Dinner cost is included in the participation fee. *Participation fees include consumption tax.

Contents:

① Backstage tour of Tropical Island

② Beluga Touch *Commemorative photo during touch provided

③ Dinner buffet at Restaurant "Ocean"

④ Animal lecture on orcas

Benefits:

● Admission to Kamogawa Sea World is possible from opening hours (9:00 AM) on the day of participation.

● A "Jacquard Towel" will be presented upon entry.

● Parking space in the first parking lot will be secured for those arriving by car.

● Advance reservation for the Night Adventure on the day of participation is possible as an option.

*Parking fee is ¥1,200.

*Options cannot be selected for July 4, 5, 11, and 12.

*Advance reservations are an option valid only for plan winners on confirmed operation dates.

*Please note that both events may be canceled.

Notes:

● This program may be canceled due to animal conditions, typhoons, or other adverse weather. Please understand this in advance.

Reservation Method:

① From Sunday, June 14, 2026, 9:00 AM to Friday, June 19, 4:00 PM

Reservations will be accepted via Google Forms during the above period.

https://forms.gle/XnWUV1b6Laary4Mn6

② Lottery results and notification to winners will be sent via email on or after Tuesday, June 23, 2026.

*Please ensure all fields are filled out.

*If applications exceed the number of available spots, a lottery will be held among applicants.

*A notice of reception closure will be posted on the official website once all winners have been contacted.

*Applications are limited to one per person per operating day.

*Payment methods for participation fees will be communicated via email upon winning.

② Night Adventure

Operating Hours: 1-hour course per group between 20:00 and 21:20

① 20:00 - ② 20:10 - ③ 20:20 - Approximately 1-hour itinerary per session

*Participation time cannot be chosen.

Operating Dates: Saturday, July 18, 2026 - Monday, August 31, 2026 - Total 45 days

Duration: Approximately 1 hour (60-minute course)

Capacity: 100 people per day

Fees (Tax Included):

Adult (High School Student and above): ¥1,800

Child (Elementary and Junior High School Student): ¥1,100

Toddler (Ages 4 and up): ¥700 *Free for children 3 years old and under

Contents:

You can observe the nighttime activities of orcas and belugas, who are active in daytime performances, with a guide from the animal keepers.

*Separate "1Day Ticket" is required for daytime admission.

Benefits:

● Exclusive bookmark for "Night Adventure" participants

● "Night Adventure" participation certificate

● Possibility to stamp the back of the bookmark with a participant-exclusive stamp

Notes:

● Events may be canceled due to animal conditions, typhoons, or other adverse weather. Please understand this in advance.

Reservation Method:

From Wednesday, July 1, 2026, 10:00 AM to 4:00 PM on the day of the event.

Kamogawa Sea World Service Department

TEL: 04-7093-4803 (10:00 AM - 4:00 PM)

*Please note that registration will close once capacity is reached each day.

Grandvista Hotel & Resort Co., Ltd.

Grandvista Hotel & Resort operates the Sapporo Grand Hotel, which was born as Hokkaido's first authentic Western-style hotel, and provides hotel management services nationwide through the operation of city hotels, business hotels, hot spring inns, comprehensive marine leisure facilities, golf courses, and highway restaurants, working together with local communities.

Company Name: Grandvista Hotel & Resort Co., Ltd. Location: S-GATE Otemachi Kita 5F, 2-3-4 Uchikanda, Chiyoda-ku, Tokyo Established: August 27, 1958 Capital: ¥100 million President: Yukio Arai TEL: 03-5209-4121 (Main) URL: https://www.granvista.co.jp/ Facebook: https://www.facebook.com/granvista.co.jp X: https://twitter.com/granvista Keywords: