Ka'u Desert Trail is a 11.2 mile trail located near Hawaii National Park, HI. The trail is primarily used for hiking. 11.2 miles hiking Hide Map Expand Map Sign up now to see this map! Reviews (1)Photos (1)Recordings (1)Dave Nance7 months agohikingThe trailhead is on the highway & had lots of parking. The trail is paved and in nice shape. Went in a little way to explore and decide if we liked it. Definitely want to return. This appears to lead to several of other trails near by.