The Hydrographic survey and patrol vessel Baldur has been operated by the ICG since 1991. The vessel has proven to be excellent for near shore hydrographic surveying, surveillance, law enforcement, training, and various other tasks that the ICG undertakes. Baldur is especially equipped for hydrographic surveying for nautical charting. Among other things, the vessel is equipped with a multi-beam echo sounder and positioning system to meet international requirements for depth surveying for nautical chart production. Baldur also carries a small boat that is equipped with a depth gauge for surveying in shallow water and areas close to the shore.