Dive boat mooring buoys

[David Bruce Gunnersen]

Hello coral list subscribers.

Can nayone advise me of any standard procedures and equipment for 
attaching permanent mooring buoys to coral reefs in order that dive 
boats may moor and avoid anchor damage to the reefs?

Is there any standard eqipment on sale/ to hire? I seem to recall seeing 
a video of underwater drilling into a reef to affix a buoy and wonder how 
this is done.

Regards,

David Gunnersen