[1] The valley forms a deep cut in the side of Kohala Mountain, and is traversed in its entirety by Pololū stream.
The valley is fronted on the ocean side by a beautiful black sand beach.
A yellow sand dune protects verdant areas inland from the occasional fury of the ocean.
Prior to European colonization, Pololū Valley was renowned for its kalo (taro) farming.
[2] Pololū Valley is accessed from the North, from a lookout at mile 28 at the end of highway 270 [3](forming the terminus of Akoni Pule Highway) at coordinates 20°12′13″N 155°44′1″W / 20.20361°N 155.73361°W / 20.20361; -155.73361 (Pololū Valley Overlook).