There are rivers that have traditional looking ocean-style beaches. However, this does bring in how people can have a bias with how things should look based on where they live, and many people are used to Rivers lacking any kind of beach or having a rocky grey-er style one.

That brings up the idea on if Larian should actually try to play to those biases to make it clearer that this is a River, or keep it as is thinking it is clear enough?