Lava Mountains near the coast and Highway Chain of Crater Road. Hawai'i Volcanoes National Park. Big Island. THE ISLAND OF MAUI. • Hana Highway. It is a narrow winding road that runs along the northern coast of the island full of waterfalls, rainforest and tropical vegetation. Among the must stand Wai'anapanapa sea caves State Park, and the Public Gardens Ke'anae Arboretum.