The reefs block high waves from the outer sea

[keannu]

[FONT=&#48148]Ritidian beach is most beautiful beach on the northern/north side of Guam.,,,[/FONT]
[FONT=&#48148]The beach of that area is filled with sand, and reefs are near the beach. The reefs block high waves from the outer sea, so there are only calm waves at the beach. And the sea over the reefs is very deep, so clean water circulates every day.
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Are the underlined parts correct? The first, especially in terms of numbers.


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[Tarheel]

I would say the reefs block big waves from reaching the beach.

(I don't live near the ocean, so what do I know? ;-) )

 

[Tarheel]

Perhaps:

It's a sandy beach, and reefs give shelter from the big waves.

Don't you expect sand at a beach?