From Crater Rim Dr, this scenic 32km (20mi) road leads down to the coast, ending abruptly where recent lava flows have buried it. Rangers can advise you on how or if it's possible to hike to the active flow; a telltale steam plume marks the spot where lava enters the water. Stay for sunset, as darkness brings out the fiery glow. The road offers no services, but several short hikes lead from it, including one to a petroglyph field.