As for reservations of activities on Okinawa「OneTwoSmile ACTIVITIES」
【Summer Limited July18-Sep30】 Explore the Cave in the Southern Island
[Gyokusendo] boasts the largest cave of Japan.
This is a limited-time offer to enjoy a cave exploration tour and its undisclosed areas with a caving instructor.
Since its first exploration survey, this 600 meters long part of the cave is known as unchanged area, Do you dare to discover it?

Cross the rocks and waters in pitch darkness toward the source of the underground river flowing through the limestone cave.
Come to this mysterious atmosphere where the beautiful stalactites are resting and live this adventure in the underground world!

【Setting period】
From July 18 to August 31
・Mondays to Fridays (2 times/day) ①10:00 ②11:00
・Sat.,Sun. and Holidays (3 times/day) ①10:00 ②11:00 ③14:00

From September 1 to September 30
・Mondays to Fridays (1 time / day) ① 10: 00
・Sat.,Sun. and Holidays (2 times / day) ① 10: 00 ② 13: 00
Outdoor Activities Guide Tour Outdoor・Sports
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  • One person OK
  • Children OK
  • Pick up service available
  • With meals
  • Required Time
  • in 3 h
  • Payment Method
  • Pre-payment by credit card
Price 12 years of age and above: ¥4,000
From 6 to 10 years of age: ¥4,000
Schedule Come to the ticket office counter in "Okinawa World" (meeting point)

Move to the activity place (change clothes)

Attend to the lecture about the cave expedition (explanation of Okinawa nature and precautions)

Cave expedition starts! (About 80 minutes)

Exit the cave (shower and change clothes)

"Cave license card" gift

End of the tour
Age 6years old ~
Min. of PAX 1people
Things included in the price Tour fee (including the guide)
Helmet and lamp rental fee
A set of exploration suit (tether, gloves, water shoes, towel)
Shower room (with shampoo and body soap)
Insurance fee
Meeting Place 〒901-0616
1336 Tamagusukumaekawa, Nanjo-shi, Okinawa

MapCode : 232 495 330*28
Meeting Time 【Meeting time】
Please come to the ticket office counter in "Okinawa World" 30 min before the tour starting time, also make the payment there.
Important notice · During the tour, there is a place up to 1 meter depth. A child may be submerged up to the shoulders and water can reach the chest in adults.
· Qualifications for participation: 6 years of age and above (minors under 10 years must be accompanied by a guardian).
· Those who are (or think they might be) pregnant can not participate.
· Customers under the influence of alcohol or with a hangover will be refused to participate.
· We provide coin lockers (large size: 400 yen, medium size: 300 yen, small size: 200 yen)
· Please prepare the following items prior to participating: swimwear (wear inside the exploration suit), Towel for after shower and plastic bags for putting wet clothes.
· Depending on weather conditions or typhoons the tour may be cancelled.
※ In case of cancellation, we will contact the customer. When making the reservation, your contact information will be mandatory.
· We're sorry but our tour guide can speak Japanese only.
Cancellation Policy Charges will not be applied if we receive the cancellation notice until [23:59 of 2 days prior to the activity day].
50% of the activity fee will be charged if we receive the cancellation notice from [00:00 on the previous day of the activity].
100% of the activity fee will be charged if we receive the cancellation notice from [00:00 on the actual day] .
※However, cancellation fee will not be charged if the tour has been cancelled due bad weather such as heavy rain or typhoons.
Organizer Okinawa World Open 7 days a week            
7:00am to 5:30pm.(entrance time by 4:30pm)
Available languages: ja
※ It may be text/photo descriptions