제주도(jeju) 만장굴(manjanggul) 3
제주도에서 찍은 만장굴 사진^^
2155357جميع الحقوق محفوظة.
#formation#cave#fluvial_landforms_of_streams#underground_lake#manjanggul#phenomenon#caving#Jeju#sea_cave#coastal_and_oceanic_landforms#karst_landforms#geological_phenomenon
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