Tasmania, Australia, Geology, Tasman Peninsula, columnar jointing, cooling, jointing, hexagonal, Rocks, Sea columns, sea cliffs, south, antarctica, adventure, travel, blog, geologist, exploring, exploration, dolerite, what rock type is, how did form, ocean, sea, intrusive, extrusive, geomorphology, cape raoul, bush walking, hiking

Tasmania, Australia, Geology, Tasman Peninsula, columnar jointing, cooling, jointing, hexagonal, Rocks, Sea columns, sea cliffs, south, antarctica, adventure, travel, blog, geologist, exploring, exploration, dolerite, what rock type is, how did form, ocean, sea, intrusive, extrusive, geomorphology, cape raoul, bush walking, hiking

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