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Akashi Strait

The Akashi Strait (明石海峡, Akashi Kaikyō) is a strait between the Japanese islands of Honshu and Awaji. The strait connects Seto Inland Sea and Osaka Bay. The width of the Akashi Strait is approximately 4 kilometers, and maximum depth is about 110 meters.[1] The fastest tidal current is about 4.5 metres per second (8.7 knots).[1]
Map of Japan with mark showing location of the Akashi Strait

Akashi Strait  Click to go to Wikipedia