Atoll
atoll
it's an island with a water court-yard
== == An atoll is a type of coral reef, shaped like a ring, that surrounds a lagoon.
A ring shaped coral reef is called an Atoll.
If you are referring to the crossword puzzle hint, try Atoll.
A coral atoll.
An atoll is a ring-shaped coral island or string of islands that surround a lagoon. Atolls typically form from volcanic islands that sink into the ocean, leaving a coral reef formation around the edge of the submerged island. The lagoon in the center of an atoll is often shallow and can support diverse marine life.
Atoll
An atoll is formed first as a reef that fringes a volcanic island. As the island sinks (after the volcanic activity has ceased and the crust has cooled, becoming denser), the reef continues to build upward, eventually ending up as a ring-shaped structure.
Atoll. Atolls are oceanic reef formation, often having a characteristic ring-like shape surrounding a lagoon. Atolls are formed when coral reef grows around a volcanic island that later subsides into the ocean.
The island was boat shaped
the opposites of lagoon you need to know the meaning of atoll: a doughnut-shaped enclosing a lagoon.the oppisite is kind of like a small river or ravine/ stream.