Sefa Utaki is a World heritage Site on the southern coast of the main Okinawan Island. It was the most important sacred site for the royal family of the Ryukyus.
There are a series of shrines but no buildings are left. The path up the hillside passes through the verdant sub-tropical forest and by limestone cliffs.
At the highest point is Sanguii, a narrow cleft in the rock that leads to the most important altar. From here you can look down on Kudaka Island, the site where myth says the gods landed bringing grain and where the Okinawan people were created.
It's possible to get to Sefa Utaki by bus, though they are not frequent. It is worth it if only to get out into nature.