Wrecks and Obstructions
The Wrecks and Obstructions dataset is consumed from an external ArcGIS web service via the following URL and ID
https://coast.noaa.gov/arcgis/rest/services/OceanReports/WrecksAndObstructions/MapServer ID: 0
OpenLayers
If you are developing in OpenLayers, you will want to use the OpenLayers ArcGIS93Rest class. An example of your solution might look similar to the code below.
layer = new OpenLayers.Layer.ArcGIS93Rest( "Wrecks and Obstructions", "https://coast.noaa.gov/arcgis/rest/services/OceanReports/WrecksAndObstructions/MapServer/export", { layers: "show:0", transparent: true }, { isBaseLayer: false } ); map.addLayer(layer);