Question

How would artificial reefs, to keep the tide from washing away the sand and
Eliminate human traffic in the grasses habitat; walkways above the sand prevent erosion by foot traffic.Plus banning fishermen from some of these areas. Help with the impact of the threats or eliminate them altogether. Mention some that are being done right now, and some that have not been tried yet.

I'm helping my cousin with a review... Please help?

@EclipsedStar @paki