The Avatiu Stream is the largest watercourse on

Rarotonga Rarotonga is the largest and most populous of the Cook Islands. The island is volcanic, with an area of , and is home to almost 75% of the country's population, with 13,007 of a total population of 17,434. The Cook Islands' Parliament buildings a ...

. It rises in the central mountains beneath

Te Rua Manga Te Rua Manga or The Needle is a mountain on Rarotonga Rarotonga is the largest and most populous of the Cook Islands. The island is volcanic, with an area of , and is home to almost 75% of the country's population, with 13,007 of a total popu ...

and flows north to the sea at

Avatiu Avatiu is a settlement on Rarotonga in the Cook Islands. It is located on the north coast to the west of the capital Avarua and is the location of Rarotonga's main port. Notable buildings include a Mormon Mormons are a religious and cul ...

. The stream flows at a constant grade of 4.5% and has a length of . 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.

References

Rivers of the Cook Islands Rarotonga {{CookIslands-river-stub