Most impressive; i wish i could visit it !
Visible are modifications carried out through time, as in many or all fortifications everywhere.
It is comforting to know that your nation cares to perserve its historic assets; i see that plenty Omani forts are or were restored ... something not so intense over here, i guess. Naturaly you need funds to go ahead with these works, which are not at all that cheap.
I take it that those two cannons are not wearing a 'raincoat' to prevent them to catch a cold but a 'dustcoat' to save them from the dirt caused by the restoring works.
This is not the first time you mention that this is the place where cannons were first fired in Oman (1616). Am i missing something in the approach? Do you mean cannons first fired by Omani or first fired at all ? Wasn't Portuguese artillery used all through the 16th. century ?
Amazing and somehow off topic is the brick pavement on the walkway, like where the cannons are standing; same as used here in many places, like in my own residence park, for one. Could they have been imported from here ?