This hike is not for the faint of heart and will take a bit of planning. This thru-hike connects the last two for a total of 12 miles. You start up at the summit of Haleakalā at Sliding Sands and descend about four miles down into the crater of this dormant volcano. The next four miles take you through the center of the crater where youʻll experience a wide variety of alien looking landscapes. You hike through large lava fields, up and around ancient cinder cones, and finally through a lush grassland. To really add to the otherworldly experience, down here in the middle of the crater is one of the quietest places in the world. Finally, the last four miles take you up some steep switchbacks as you make your ascent up the ridge.
As this is a through-hike, you will have to plan and/or coordinate a way back to your car after you finish the hike. You can either take two vehicles and park one at the start and one at the end, or hope someone friendly will let you hitchhike back to your car.