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A blowhole is also the name of a rare geologic feature in which air is blown through a small hole at the surface due to pressure differences between a closed underground system and the surface. The blowholes of Wupatki National Monument are an example of such a phenomenon. It is estimated that the closed underground passages have a volume of at ...
A blowhole is a cavity formed when a joint between a sea cave (formed by erosion) and the land surface above the cave becomes enlarged. The sea cave and the land surface become conjoined when the roof of the cave collapses.
The Pancake Rocks are a heavily eroded limestone formation where the sea bursts through several vertical blowholes during incoming swells, particularly at high tide. The limestone was formed in the Oligocene period (around 22–30 million years old), a period in the geological history of New Zealand where most of the continent of Zealandia was submerged beneath shallow seas. [2]
Blowhole may refer to: Blowhole (anatomy), the hole at the top of a whale's or other cetacean's head; Blowhole (geology), a hole at the inland end of a sea cave Kiama Blowhole in Kiama, Australia; The Blow Hole, a marine passage between Minstrel and East Cracroft Islands in the Central Coast of British Columbia, Canada
Closeup of Nakalele Blowhole Warning sign at Nakalele Point. Nakalele Point is a land mass on the eastern edge of the northern tip of the island of Maui in the state of Hawaiʻi. In Hawaiian, Nakalele or Nā-kālele means "the leaning". The Point is known for its blowhole and has become notable for its dangerous conditions when waves crash in.
The Alofaaga Blowholes, also known as the Taga Blowholes, are a natural feature located in the district of Palauli, south west of Salelologa wharf on the island of Savai'i in Samoa.
The blowhole is most active when the tide is high and the winds are strong, [3] and it can shoot sea spray up to thirty feet high in the air. [4] Hālona Point is a tourist spot, with visitors coming for the scenery, the beach at the cove, and in the winter as a spot to go to see humpback whales or Honu turtles (Hawaiian Green Sea Turtles).
There is a second, less famous blowhole in Kiama, commonly referred to as the "Little Blowhole" by locals. It is much smaller than the other (called the "Big Blowhole"), but due to its narrow shape, it is more reliable than the Big Blowhole, and in the right conditions can be equally spectacular. The blowhole attracts 900,000 tourists a year. [2]