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Nanatsugama consists of multiple sea caves along the coast of Karatsu city in Saga prefecture. This landscape was formed by nature over a long period of time and is so beautiful that it is registered as a national natural monument. As the name suggests, Nanatsugama (nana=seven) consists of seven adjacent caves. The biggest one has a 3-meter wide opening, goes as deep as 110 meters and can be explored on a cruise boat. The mythical atmosphere created by the blue ocean reaching all the way to the back of the cave and the rocks that have been formed by strong waves to look like giant sculptures is breathtakingly beautiful.
- Yakataishi, Karatsu-shi, Saga
- Contact No.
- From JR Karatsu Station, walk 5 min to Karatsu Ote-guchi Bus Center and take Minato-sen towards Yobuko for 35 min, get off at Nanatsugama Iriguchi and walk for 30 min.
- Opening Hours / Holidays
- Nanatsugama cruise Ikamaru leaves every hour between 9:30 - 16:30
Please check website for details, as times may vary depending on weather conditions.
- Official Website
- Time Required
- 60 min
- Admission fee
- Nanatsugama cruise Ikamaru fee: adults 1,600 yen, children 800 yen
※ Some information is displayed in Japanese and machine-translated English, which may not be accurate.
For the latest information, please check the official website for each spot.
Cave Exploring on Boat Ikamaru
Recommended for exploring Nanatsugama is the cruise boat Ikamaru! From the boat, it is possible to explore the insides of the cave and you get to see the beautifully, surreal blue ocean and the impressive rocks from up close. Furthermore, during the 40-minute tour, the boat does not only take you to explore the inside of the cave but also to see the surrounding highlights of the ocean such as the Yobuko-Ohashi bridge.
Explore Underwater on Semi-submarine Observation Boat Zeela
Semi-submarine observation boat Zeela departs from Marinepal Yobuko, same location as Ikamaru. There are large windows inside the boat so passengers can thoroughly observe life underwater. It feels almost as if you are enjoying a walk underwater.
Take a Walk on Top of Nanatsugama
The top of Nanatsugama is made into a national park and there are trails where walkways are installed. At the end of the walkway, there is an observation deck, from which there is an incredible view of the ocean. From here, you can appreciate a distinct beauty that is different from the beauty inside of the cave.
Kawarake-saki Jinja, a Power Spot Near Nanatsugama
On the cape of the peninsula where Nanatsugama is located, there is a shrine named Kawarake-saki Jinja. This shrine is said to be a power spot since a long time ago, and legend has it that over 1,500 years ago the Empress back then threw pottery (kawarake) to wish for victory as soldiers departed to battle with Korea.