A shallow area may be called a "ford" (the verb to fordis "to cross at a shallow point").
Brooks........
It was used to carry bulk coal. This style of ship apparently had a shallow draft, and James Cook's early sea experience of these led him to use them for his explorations, on account of their utility in shallow waters or streams.
because you are still sitting iny our car instead of walking you are driving
The streams that contribute to a river system are called tributaries.
a small, shallow dish
Shallow parts of the sea or ocean are called shoals or shallows. They are areas where the water depth is relatively shallow, making them potentially hazardous for navigation.
waters of the ocean that move in giant streams are called currents.
A gold pan is typically used for washing gold. It is a shallow, wide-bottomed pan used to separate gold from sediment in rivers and streams by swirling water and material in the pan.
A shallow place in a river is called a ford if it is used as a place to wade across to the other side. A shallow place can also be called a sandbar if the water does not cover all of the sand in a river or stream.
They are called naiads.
jet streams