Nanatsugama is a mysterious scenic spot created by nature and designated as a national natural monument. This place is a sea-eroded cave (cavern) formed by the erosion of basalt by rough waves known as Genkainada. The cliffs have been deeply gouged, and as the name suggests, seven caves are lined up in a row, reminding us of the wonders of nature.
The regular columnar arrangement of rock surfaces is called “columnar joints,” and is formed by the contraction of lava as it cools and hardens. The largest cave is 3 meters wide at the entrance and 110 meters deep. If the waves are good, a sightseeing boat can take you inside.
The site is about 1.5 km long and is characterized by caves formed by columnar joints, and although it is named Nanatsugama, there are actually more than seven caves.
Among the “Nanatsugama” caves, there is a spot that looks like an elephant’s nose when seen from the sea. This is why it is called “Elephant’s Nose.
There is also a spot called “Megane Iwa” (glasses rock) on the westernmost side of the site. The reflection on the surface of the sea resembles the shape of a pair of glasses, and the rock protrudes from the surface of the sea.
The grassland above Nanatsugama has an observatory and a promenade that attracts many tourists. The area around Nanatsugama is also a popular fishing spot for anglers.
At the northern end of the cape is a place where Empress Jingu is said to have dumped earthenware vessels to pray for victory in the Korean invasion, and there is a shrine dedicated to the Empress at Dojikizaki Shrine.
Free on-site admission
Pleasure Boat
Adults (junior high school students and older) 2000 yen
Children (elementary school students) 1000 yen
Take the “Minato-Yobuko Line” from Otoguchi Bus Center, get off at Nanatsugama Iriguchi bus stop (34 minutes), and walk about 30 minutes from the bus stop.