Tateishisan

The highest mountain on Ikinajima Island is dotted with ancient megaliths. There are two hiking trails to the summit, from the Hamada side and the Sanshuen side, and near the summit there are a number of megaliths arranged in a pile that are thought to have been the site of religious ceremonies. There is also an observation deck at the summit that offers a panoramic view of the beautiful islands of the Seto Inland Sea, making it a spot where you can easily experience the natural scenery and the romance of the mysterious ancient times.