How do I animate the water at my place?

I am trying to build a island place, and I need a script that makes a current for the ocean. I'm sorry for asking for a script from scratch, but I have basically no coding knowledge. Can someone help me? Any feedback would help.

you would have to make each piece of water a part and move it in a while loop. That would cause major lag though. I'm sure there is something in free models you can learn from.

There are 2 types of water terrain one of them are only for BC if I'm not wrong.Play around with the terrain stamper or terrain studio tools till you find it.