Question

what is a large isolated expanse of water without a link to the open sea called ?

Answer 1

It is known as Lagoon or a tidal pond is a shallow waterway shielded from a bigger waterway (more often than not the sea) by sandbars, boundary islands, or coral reefs. Tidal ponds are frequently called estuaries, sounds, narrows, or even lakes.

There are waterfront tidal ponds which are protected by sandbars or obstruction islands are called seaside tidal ponds. Seaside tidal ponds shape along waterfront fields—level or delicately slanting scenes. They shape in regions with little tidal extents. Seaside tidal ponds are made as a shallow bowl close to the shearing step by step dissolves, and the sea leaks in the middle of the sandbars or barrier islands.

The size and profundity of beach front tidal ponds frequently rely on upon ocean level. At the point when the ocean level is low, seaside tidal ponds are swampy wetlands. At the point when the ocean level is high, they can look like waterfront lakes or inlets.

The city of Venice, Italy, is based on obstruction islands and a waterfront tidal pond of the Adriatic Sea. Truth be told, Venice's moniker is "Ruler of the Adriatic."

The Venetian Lagoon is the biggest wetland in the Mediterranean. It comprises for the most part of saltwater bogs and mudflats. Two huge streams (the Sile and the Brenta) exhaust into the tidal pond. It's thin obstruction islands have three limited openings to the Adriatic.

There is likewise Atoll lagoon which are like beachfront tidal ponds. Rather than being shielded by sandbars or obstruction islands, be that as it may, atoll tidal ponds are secured by coral reefs. Atoll tidal ponds are exceptionally basic in the tropical waters of the South Pacific and Indian Oceans.