It includes a few canyon overlooks from which views of Ni'ihau Island are possible. Backcountry trails, suitable for backpackers , take adventurous visitors deep within the canyon for a closer look at flora and fauna. A short nature trail provides an opportunity for plant identification. Wailua River, also in Kaua'i, incorporates the historical and natural sites on and around the Wailua River in eastern Kauai. The boat ramp within the park provides access to the only navigable river on the island.
Fishing is available on the shore here.
Other highlights within the park include the remains of Malae, Holoholoku and Poliahu Heiaus. Other cultural resources include the royal birthing stones of Kaua'i and a traditional place of refuge. A riverboat cruise on the Wailua is available for an added fee. Wai'anapanapa lies on the eastern Maui coast, which contains a variety of volcanic formations. Caves, arches, black beaches, sea stacks and blow holes are present within the 122 acres of Wai'anapanapa.