In reply to Pete Dangerous:
No buses eh, wonder how the people go to work, shopping and the kids get to school?
You can walk there along the coast through the Zingaro national park.
You can get the tourist boat there if it´s running (no idea myself).
Hire a MTB and bike there along the normal road to Luppino and then the (closed) jeep road to Scopello.
Get the bus from San Vito to Palermo or the bus to Trapani and then Palermo and get off at Madonna della Scala, walk 5km.
Get the above buses and go to Castellammare del Golfo, from there the buses run to Scopello or a tripper boat.
I´ve always just driven there!