Faru is the Dhivehi word for these reef structures.

Although some tube worm species still inhabit the bay area and the reefs, they bring no significant contribution to the reef structure.

Without their symbionts, coral growth would be too slow to form significant reef structures.

The submarine then visits underwater points of interests, typically either natural or artificial reef structures.

Once the reef structure is in place and minerals begin to coat the surface, the next phase of reef construction begins.

Thus they may develop hard reef structures.

Below the whales, just above the ocean floor, there was a large dark hole in the bottom of an imposing reef structure.

The two reef structures do not have the same color.

All the tracks, although somewhat eroded, still converged in front of the reef structure where the hole had been just two days before.

Catastrophically, the tires were not properly secured to the reef structures.