As part of efforts coordinated by the City Government of Sosua and the Ministry of Tourism, Sosua Beach now has posted rules. Banned are ambulant vendors, motorcycles or bicycles, loud music, garbage throwing, glass bottles, BBQs or bonfires, domestic animals, firearms, sleeping on the beach after 7pm, parking boats on the beach.
http://dr1.com/forums/north-coast/142406-rules-sosua-beaches.html