The phrase 'underwater forest' is correct and usable in written English.
You can use it when talking about areas of the ocean floor where coral or other underwater plant life grows in large numbers. For example, "The Great Barrier Reef is an amazing underwater forest consisting of thousands of coral species."
Twenty feet out on the crenellated alleys of the reef, the underwater forest begins.
Though we hooked six before noon, we landed only one, and the rest took our flies for a tour of the underwater forest.
The first time he fished at Trout Lake in Wisconsin in 1982, Mr. Lodge said, "the bottom was covered with vegetation — like an underwater forest, with snails of every sort.
A closer look at leaves bobbing on the surface reveal they haven't fallen at all, rather they're attached to an underwater forest moving in slow, soothing waves beneath the depths.
Work began in 1882 on the Sagrada Familia, whose radical design, incorporating elements of Gothic revival, Art Nouveau, modernism and Asian art, has been compared to everything from a Dr. Seuss drawing to an underwater forest of kelp and coral.
Ancient underwater forest found off UK Jump to media player New footage reveals a 'lost world' after the discovery of an amazing underwater forest thousands of years old underneath the sea off eastern England.
The brilliant green underwater forests of endemic Baikal sponges are dying, victims of an unknown pathogen.
Such underwater forests provide shelter to hundreds of organisms, and can also protect shorelines from erosion.
On the Pacific coast, the big, habitat-forming structures are not coral reefs but underwater "forests" of seaweed.
In turn, the sea urchins would have severely damaged the underwater forests of kelp on which they fed.
The discovery was important given the nourishment kelp's underwater forests provide for fish and other sea animals.
