[1] The Muria Strait is currently included in the main non-structural plain, which means that it is estimated that in a period in the past the area was an ocean.

[4] On this island are also located the capital cities of the northern coast of Java, such as Jepara, Kudus, and Pati.

[5]: 182 Initially, this area consisted of small ports around the strait with Demak as the main port, but due to political conflicts, commodities originating from the area around the Muria Strait (Muria Island and Kendeng Mountains) shifted to Sunda Kelapa Harbor.

[1]: 111–113  In the last days of the existence of the Muria Strait there was a water channel that could be passed by small boats which is now called the Londo River.

[citation needed] The remainder of the Muria Strait can be seen by the Londo River, which stretches from Juwana in the east to Ketanjung in the west.