Near the 19-mile marker, Wailua Valley State Wayside lookout comes up on the right. The overlook provides a broad view into verdant Ke驶anae Valley, which appears to be 100 shades of green. You can see a couple of waterfalls (when they鈥檙e running), and Ko驶olau Gap, the break in the rim of Haleakal膩 crater, on a clear day. Turn towards the sea for an outstanding view of Wailua Peninsula as well 鈥 don鈥檛 miss this.
A word of caution: the sign for the wayside appears at the last moment, so be on the lookout.