There is currently 3 active volcanoes in Hawaii , Maunaloa and Kilauea are Hawaii's volcano national parks. The last time maunaloe erupted was in 1984 and Kilauea has been continuously erupting since 1996 if this volcano continues to erupt it will break the surface in 250,000 years , this would add a ninth island to the  Hawaiian chain of islands. the national park in Hawaiian is the most popular tourist attraction ,it is a museum where tourists can see the powers of the Hawaiian volcano , you can also hike along rocky trails and visit deserts.(google images)