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Hawkesbury River Monster

Hawkesbury River Monster

Also known as: Mirreeulla, Hawkesbury Monster

A plesiosaur-shaped creature in the murky tidal waters north of Sydney, reported by fishermen for over a century.

First Reported

Ancient (Dharug rock engravings); modern reports from 1900s

Origin Area

Hawkesbury River, New South Wales, Australia

Size

7-25 ft long

Temperament

Curious but non-aggressive

Status

Unconfirmed

The Lore

The Hawkesbury River Monster is a large aquatic creature reported in the Hawkesbury River system northwest of Sydney, Australia. The Dharug people called it Mirreeulla and depicted it in rock engravings along the river. Modern reports describe a creature 7-25 feet long with a long neck, small head, and dark, smooth skin. It surfaces in the deep tidal sections of the river, particularly between Wisemans Ferry and Brooklyn. Fishermen have reported it following boats, and sonar readings have picked up large unidentified objects moving against the current.

Notable Witnesses

  • Rex Gilroy (cryptozoologist)
  • Multiple commercial fishermen

Media Appearances

  • Mysterious Australia (documentary)

Similar Real Animals

Bull shark (Carcharhinus leucas)Large Murray cod