[Tossrock]

Sorry, you said the reef looks "indistinguishable to what it looked like 20-odd years ago." which implies it looks basically the same, but that seems at odds with the rest of what you're saying. Did you mean something besides "indistinguishable" ("unrecognizable", maybe?)

[crawrey]

Corrected, thanks. I'll put it down to lack of sleep :P.

[mikelyons]

The other one is "rifled" when you mean rife. :)

[crawrey]

You are correct, sir :).