This is a Gold Dust Day Gecko, Phelsuma laticauda laticauda. They’re fairly common in the Kona coast of Hawaii island; I found this one in the village of Holualoa.
This species is well established in localized areas on Oahu, Hawaii, and Maui where it is found on large trees and palms in suburban neighborhoods. All of the Hawaiian populations stem from just eight lizards released by a student on the University of Hawaii campus in 1974. It is native to the humid regions of northern Madagascar, on two of the Comoros Islands, and on the Farquhar atoll in Seychelles.