A salt marsh is like a big muddy area on the edge of the ocean, where saltwater and freshwater mix together. It's a special kind of environment where a lot of different plants and animals can live.
The marsh is made up of mud and sand, and when the tide comes in, the water fills up the marsh. When the tide goes out, the water recedes, and the mud and sand are left behind, making the marsh all muddy.
The plants that grow in the salt marsh have to be really tough because they have to put up with saltwater and also strong winds. Some plants that you might see in the salt marsh include tall grasses, shrubs, and even some small trees.
There are also lots of different animals that live in the salt marsh, like fish, crabs, and different kinds of birds. When the tide comes in, the fish and crabs swim in the marsh to find food. When the tide goes out, the birds come to search for food in the mud, too.
People like to visit the salt marsh because it's a neat place to explore and find different animals and plants. But it's important that we take care of the marsh and not disturb the animals or plants that live there.