After passing through Shizi and Checheng, the highway enters Hengchun Township, home to Kenting National Park.

After reaching Cape Eluanbi, the highway turns northbound and head towards Jialeshui [zh] on the east side of the park.

The highway has a gap between Jialeshui and Gangzai (港仔) in Manzhou Township.

The highway continues as a 1-lane highway from Gangzai to Xuhai (旭海) in Manzhou Township, before it reaches another unbuilt gap from Xuhai to Xianantian (下南田) in Daren Township, Taitung.

The stretch of the highway from Xianantian to its terminus at Anshuo (安朔), Daren Township, is open to traffic.