Many coastlines are subject to powerful waves that crash directly onshore. An artificial reef situated 150-300 yards offshore might create surfing opportunities and, by dissipating wave energy, make swimming safer and reduce coastal erosion.
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A multi-purpose reef, also commonly known as an artificial surfing reef, is an structure located offshore designed to induce wave breaking in a manner that creates a wave suitable for surfing or bodyboarding. Artificial surfing reefs can exist in many different configurations and be built from a variety of different materials. To date there have been fewer than 10 attempts to build such a structure world wide.