The highway negotiates three sharp curves: Maulua (mile 22), Laupāhoehoe (mile 26) and Kaawalii (mile 28). Maulua Gulch has a small waterfall emptying into the ocean (visible from the Hilo side by looking across the gulch) and another in the back part of the gorge near the base of the radio tower. Also, an abandoned railroad tunnel is sometimes visible from the Hāmākua side. The Laupāhoehoe Railroad Museum is located on the “mauka” side past mile 25. On the other side of Laupāhoehoe Gulch, an access road leads down to Laupāhoehoe Point Beach Park where the victims of the 1946 “April Fool’s Day” tsunami are memorialized. Past Kaawalii Gulch lie the much-welcomed passing lanes as Highway 19 goes by the old sugarmill town of Oōkala.