Extreme care must be taken to navigate the coral heads.

It is often found in schools under ledges or around coral heads.

But the task of repairing just one coral head is daunting.

Generally found in small groups around coral heads or large rocks.

Now Bond slid round to the other side of the coral head.

They are generally associated with reefs and can be found over coral heads in small groups.

Examining one of the coral heads, we found it pulsating with life.

"Take swim team six with you; place the charges on the coral head and set the timers."

Big coral heads dotted the bottom here, so I jumped in for a look.

They easily slipped across the mass of jagged coral heads.