Awaji Island is an island in Hyōgo Prefecture, Japan, in the eastern part of the Seto Inland Sea between the islands of Honshū and Shikoku. The island has an area of 592.17 square kilometres. It is the largest island of the Seto Inland Sea.
As a transit between those two islands, Awaji originally means "the road to Awa", the historic province bordering the Shikoku side of the Naruto Strait, now part of Tokushima Prefecture.
Wikipedia https://en.wikipedia.org/wiki/Awaji_Island
Coordinates 34°21'55.365" N 134°49'34.138" E
