|0 m (0 ft)|
|Length||4.85 km (3.01 mi)|
The Avatiu Stream is the largest watercourse on Rarotonga. It rises in the central mountains beneath Te Rua Manga and flows north to the sea at Avatiu. The stream flows at a constant grade of 4.5% and has a length of 4.85 km (3.01 mi).
In 2018 a heavy downpour caused the stream to overflow its banks and flood businesses in Avatiu. In July 2020 the stream dried up due to low rainfall.
- "CATALOGUE OF RIVERS FOR PACIFIC ISLANDS: COOK ISLANDS" (PDF). Pacific Water. p. 11. Retrieved 24 July 2020.
- Rashneel Kumar (11 April 2018). "Govts blamed for flooding". Cook Islands News. Retrieved 24 July 2020.
- Losirene Lacanivalu (1 July 2020). "Lagoons pristine, streams stagnant". Cook Islands News. Retrieved 24 July 2020.