A narrow sand tidal island called Spurn in Yorkshire was featured in BBC’s Seven Natural Wonders in 2005 - here is some background on how it was formed.

In this diagram, we see a wide range of salinities (0.1 to 32), wave processes that dominate at the mouth of the estuary, tidal processes that occur in the middle region, and river or fluvial ...

The majority of rivers then eventually join the sea at what is called it’s mouth, often forming an estuary. Ryley and Maisie are joining me on the bank, or the side, of the river. They’re ...

The estuary at the southern edge of California ... This blocked the river mouth with sand and created a stagnant pool that ...

Yes! Rivers lead to the sea or a lake, and the place where it enters the sea or lake is called the river mouth Rivers that flow into the sea form an estuary where fresh water from the river mixes ...