  The ANTARES detector is the largest deep sea underwater neutrino telescope in
operation. The apparatus comprises a matrix of 885 photomultiplier tubes (PMTs)
which detect the Cherenkov light emitted by the charged leptons produced in the
charged current interactions of high energy neutrinos with the matter inside or
near the detector. Reconstruction of the muon track and energy can be achieved
using the time, position and charge information of the hits arriving to the
PMTs. A good calibration of the detector is necessary in order to ensure its
optimal performance. This contribution reviews the different calibration
systems and methods developed by the ANTARES Collaboration.
