There are three harbors in San Luis Obispo County: Port San Luis, Morro Bay and San Simeon. They are primarily used to support a small amount of commercial fishing and primarily serve recreational boating. Harbor plans have been adopted for Port San Luis, Morro Bay and San Simeon. While each of the three harbors affords various levels of support for the commercial fishing industry; Port San Luis and Morro Bay harbors provide docking, mooring, and processing facilities, while the San Simeon harbor functions as a marginal shelter during adverse weather conditions. There are no general cargo or passenger ship terminals in the region. Commercial fishing activity is centered at Morro Bay and Port San Luis (Avila Beach); however, this activity has been severely constrained in recent years due primarily to limitations brought about by the general decline in the fisheries along the west coast.