Stock Free Images has hundredths of images of Maui, Hawaii, that you can download for free (please read their Terms and Conditions before you download and use their images).
Maui is the second-largest (727.2 sq mi), and third most populated (144,444 residents as of 2010) island in the State of Hawaii. The islands nickname is "The Valley Isle," and it's visited by over 2 million people annually.
Showcased below are my favorite images of Maui, Hawaii, from Stock Free Images. You can click on each image to download it from that site.
Rocky Shoreline in Maui
Description: This fantastic image features the island of Molokai in the background, with a secluded area kick back. If you view the full image, you can see dozens of swimmers in-between both islands.
Haleakala Mountain Before Sunrise
Description: Haleakala mountain (AKA East Maui Volcano) is the tallest mountain on the island of Maui. This image was taken just before sunrise.
Maui Sunset Sihouette
Description: A beautiful image of a female sihouette during a sunset.