Set against the beautiful natural scenery of the Goto Sea, embark on the “Shiosai Cruise” and discover the island’s history and culture from the water. Cruise past landmarks such as Kashiragashima Church and historic sandstone quarry sites before trying your hand at splitting “Kamigoto Stone.”
You can take home the stone you split as a special souvenir of your journey.
This unique experience lets you discover the charms of Shinkamigoto from two perspectives—the sea and the land.
Enjoy a special view of Kashiragashima Church from the sea—a unique experience only possible from the boat.
Experience the beautiful nature of the Goto Sea and discover the history and culture that have shaped the islands.
Cruise up close to islands and former quarry sites where Kamigoto Stone was once quarried.
Discover the history and stone culture of Kamigoto Stone, which was used in the construction of Kashiragashima Church.
Try a one-of-a-kind stone-splitting experience and split a piece of Kamigoto Stone cleanly in two with your own hands! Take home the stone you split as a special souvenir of your journey.
Your tour begins at Tomosumi Port with an approximately one-hour “Shiosai Cruise.”
Surrounded by the beautiful scenery of the Goto Sea, cruise past Okinokojima, the Fukamiura area, Rokuro Island, Shirabae, and Chijimibana—places once associated with sandstone quarrying. Along the way, you will pass beneath Kashiragashima Bridge and enjoy a unique view of Kashiragashima Church from the sea.
Take in the islands from the water while discovering the nature, history, and culture of Shinkamigoto.
After the cruise, head to “Shiosai,” overlooking the sea, for a hands-on Kamigoto Stone-splitting experience.
Kamigoto Stone, a type of sandstone from the Sakiura area, is deeply connected to the island’s history. It was even used as a building material for Kashiragashima Church, a nationally designated Important Cultural Property of Japan.
During the experience, you will hear from Takemura Stone Industry, which continues to quarry Kamigoto Stone today. Learn about the characteristics of the stone, the history of quarrying, and stories connected to this local material before trying to split a piece of genuine Kamigoto Stone yourself.
Your challenge is simple: split one stone cleanly into two!
Feel the moment the stone breaks and discover the unique surface hidden inside—something you can only experience by splitting the stone yourself.
Best of all, you can take home the Kamigoto Stone you split as a souvenir. Your one-of-a-kind stone will become a special reminder of your journey to Shinkamigoto.
Experience the natural beauty of the Goto Sea, discover the island’s history and culture, and finally touch a piece of stone shaped by the land itself.
This special tour offers a unique way to experience Shinkamigoto from two perspectives: the sea and the land.
Please note that the cruise route may be changed depending on weather and sea conditions.
If the tour is canceled due to circumstances on our side, you will receive a full refund of the participation fee.
The amount of time spent on the boat may vary depending on weather and sea conditions.
Cruise staff will be waiting for you at the meeting point.
For your safety, all guests are required to wear a life jacket while on board. Please follow the staff’s instructions and wear your life jacket correctly. Life jackets are provided free of charge.
If you are prone to motion sickness, we recommend bringing seasickness medication. Please be sure to prepare your own medication in advance.
If the tour is canceled due to circumstances on our side, you will receive a full refund of the participation fee.
The amount of time spent on the boat may vary depending on weather and sea conditions.








