Wainiha is a community section in the Hanalei district of northern Kauai.
Wainiha is on the northern coast of Kauai and includes a bay and canal.
The terrain is varied and also includes a cliff (pali), river, and valley.
[citation needed] The population density is 14 people per square mile.
The name is Hawaiian and literally translates to "unfriendly water", probably referring to the coastline's treacherous currents.