I'm still fairly new to CC3 (today is day 3). So I apologize if this seems like an obvious question.

How do I make my water look like it's lower than the ground? I have a river next to some cement, but I cannot figure out how to do a shadow effect to show that the water is a foot lower than the ground.

I've seen it done on posted maps, but I'm at a loss for how it's done. I've tried going into my Sheets and messing with the shadows of water and floors, but the floor shadows don't go the right way and I'm not seeing an effect of the water's shadow.

Thanks so much for any help you all can give me!