Just before the 19-mile marker, Wailua Valley State Wayside lookout comes up on the right, providing a broad view into verdant Keʻanae Valley, which appears to be 100 shades of green. You can see a couple of waterfalls (when they’re running), and Koʻolau Gap, the break in the rim of Haleakalā crater, on a clear day. If you climb up the steps to the right, you’ll find an outstanding view of Wailua Peninsula as well – don’t miss this.
A word of caution: the sign for the wayside appears at the last moment, so be on the lookout.
