The volcanoes waterfalls air adventure showcases the how the story of hawaii is inextricably linked to the elements you will fly over klauea the most active volcano on earth and search out glowing red lava evidence that this fiery hot spot is constantly cycling through both creation and destruction however the windward side also catches enough rain to make hilo the wettest city in the united states all this water fills tunnels that once flowed with lava creating incredible rivers