The Submillimetre APEX Bolometer Camera, SABOCA, was successfully commissioned in March 2009 for operation as a facility instrument on the 12-metre APEX telescope, located on Llano de Chajnantor at an altitude of 5100 m. This new camera for the 350-μm atmospheric window uses superconducting bolometers and was built by the Max-Planck Institute for Radio Astronomy in collaboration with the Institute of Photonic Technology. SABOCA complements the existing suite of sub-mm receivers available on APEX, fully exploiting the excellent atmospheric transmission at the site by offering effective mapping of the thermal continuum dust emission at shorter wavelengths.