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Hummanaya Blowhole
දික්වැල්ල හුම්මානය
Map showing the location of Hummanaya Blowhole
Map showing the location of Hummanaya Blowhole
location in Sri Lanka
Coordinates5°58′40″N 80°44′13″E / 5.9778905°N 80.7369175°E / 5.9778905; 80.7369175Coordinates: 5°58′40″N 80°44′13″E / 5.9778905°N 80.7369175°E / 5.9778905; 80.7369175

Hummanaya Blowhole is the only known blowhole in Sri Lanka and it is considered to be the second largest blowhole in the world.[1] Hummanaya (Sinhala: හුම්මානය = හූ+මානය) refers to the noise, "hoo", that can be heard a distance away when the blowhole is active.[2]


The Hummanaya Blowhole is located 1.1 kilometres (0.7 mi) from the small fishing village of Kudawella, which is 28 km (17 mi) from Matara, 5 km (3.1 mi) from Dikwella and 12 km (7.5 mi) from Tangalle, in the Southern Province.


Hummanaya is a natural blowhole, and caused when sea water rushes through a submerged cavern and is pushed upwards. The sea water flows underneath the shore, and then comes out of this hole due to pressure. The water fountain created by the geological feature shoots up every couple of minutes, depending on the nature of the sea, with the spray often reaching as high as 25 m (82 ft) to 30 m (98 ft).[3][4]

This site has now been developed as a tourist attraction, with a small visitors' information centre on marine life and a viewing platform.[5]


  1. ^ "Hummanaya Blow Hole". geocaching. Retrieved 2 August 2016.
  2. ^ "The Hummanaya Blow Hole in Kudawella". Groundspeak Inc. Retrieved 25 March 2012.
  3. ^ "Hummanaya Blow Hole". The Sunday Leader. Archived from the original on 19 February 2013. Retrieved 19 March 2012.
  4. ^ De Livera, Lankika. "Blow Hole (Hummanaya): Dikwella". Sunday Times, Colombo. Retrieved 30 March 2012.
  5. ^ Waidyasekera, A. (24 November 2009). "Hummanaya Developed" (PDF). The Island. Upali Newspapers. p. 4. Retrieved 20 March 2012.