The Spiral Jetty is massive land art created by artist Robert Smithson. The Jetty is an old oil rig that serves as a great prop for landscapes. This area provides dark skies and a good view of the Milky Way. Getting to this spot is easy without a 4. WD (although it helps).
This spot is pretty wild and barren. Head there with an open mind and be ready to have an amazing experience.
Some things to look out for: