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San'in Kaigan NP, Hyogo
Claim this place to tell your story your way.
“Hasakari” comes from a local Tajima-dialect word meaning “to be wedged.” It’s a wonderfully literal name for the round boulder caught between the rock pillars offshore.
Because the boulder looks as if it might fall—but doesn’t—visitors treat Hasakari Rock as a “won’t-fall” good-luck symbol, praying for success in exams and job hunting.
In spring 2026, a local goods brand and Kyukamura Takeno-Kaigan created “Gokaku-kigan Hasa-Curry”: rice pillars hold a round cutlet in place, recreating the rock in a meal inspired by its exam-success symbolism.
Look for pale chunks in Hasakari Rock’s rough, darker stone: they are large granite gravel embedded in sedimentary rock. The material was deposited by a landslide during the formation of the Sea of Japan.
A popular explanation says the wedged boulder fell from a sea-cave roof. But a San'in Kaigan Geopark field guide notes that several explanations exist and the precise process is not known for certain.
The rounded rock caught between the two sea pillars is about 3–4 metres across. That’s no pebble: it’s a boulder-sized block, balanced in the gap that gave the formation its name.
Hasakari Rock was designated a Hyogo Prefecture scenic spot on March 29, 1968. The official national-park plan lists it as a scenic spot—a different designation from a natural monument.
