IN THIS PROJECT WE WILL CONTINUE AND EXPAND OUR WORK IN ANTARES AND KM3NET, ACCORDING TO THE GOALS DESCRIBED IN THE FOLLOWING, WHICH FOLLOW THREE MAIN LINES: TO CLOSE THE ANTARES ANALYSES IN WHICH WE HAVE PARTICIPATED, TO CONTRIBUTE TO THE CONSTRUCTION OF FASE II OF KM3NET AND TO TAKE ADVANTAGE OF THE OPPORTUNITIES OF PHYSICS ANALYSES OPENED WITH THIS NEW DETECTOR:_x000D_ 1. PHYSICS ANALYSES WITH ANTARES:_x000D_ A. SEARCH FOR DARK MATTER: WE WILL OPTIMIZE THE ANALYSES, INCLUDING NEW AVAILABLE DATA. WE WILL ALSO DO A COMBINED ANALYSIS WITH ICECUBE DATA_x000D_ B. MULTI-MESSENGER ASTRONOMY: THE DATA SAMPLE WILL BE ENLARGED FOR SEVERAL ANALYSES. THE COMBINED ANALYSIS WITH ICECUBE WILL BE FINISHED_x000D_ 2. TIME CALIBRATION OF ANTARES:_x000D_ A. NEW CALIBRATION CONSTANTS WILL BE RELEASED, OBTAINED WITH SEVERAL METHODS (ATMOSPHERIC MUONS, POTASSIUM-40, OPTICAL BEACONS)_x000D_ 3. PHYSICS ANALYSES WITH KM3NET:_x000D_ A. SEARCH FOR DARK MATTER: SENSITIVITY FOR THE GALACTIC CENTRE AND THE SUN WILL BE OBTAINED, AS WELL AS NEW RESULTS WITH THE FIRST INSTALLED LINES_x000D_ B. NEUTRINO PHYSICS WITH ORCA: THE MAIN SYSTEMATIC EFFECTS ON THE MEASUREMENT OF THE MASS ORDERING AND THE SENSITIVITY FOR NON STANDARD INTERACTIONS WILL BE STUDIED_x000D_ C. MULTI-MESSENGER ASTRONOMY: THE SENSITIVITY FOR POINT SOURCES AND TRANSIENT SOURCES WILL BE STUDIED_x000D_ 4. ACQUISITION ELECTRONICS:_x000D_ A. HARDWARE: CENTRAL LOGIC BOARDS, POWER BOARDS AND WHITE RABBIT SWITCHES WILL BE DESIGNED, TESTED AND PRODUCED_x000D_ B. FIRMWARE: IMPROVEMENTS IN THE DAQ FIRMWARE WILL BE IMPLEMENTED_x000D_ C. RELIABILITY: STUDIES ON RELIABILITY OF ELECTRONIC BOARDS WILL BE MADE_x000D_ D. COORDINATION AND QUALITY CONTROL TASKS_x000D_ 5. TEMPORAL CALIBRATION OF KM3NET:_x000D_ A. NANOBEACONS WILL BE DESIGNED AND TESTED_x000D_ 6. PARTICIPATION IN THE PARTICLE DATA GROUP:_x000D_ REVIEW OF LITERATURE AND CODING OF PARTICLE PROPERTIES FOR THE REVIEW OF PARTICLE PHYSICS._x000D_ 7. TRANSVERSAL ACTIVITIES:_x000D_ A. ACTIONS TO FAVOUR GENDER EQUALITY AND DIVERSITY WILL BE TAKEN_x000D_ B. WE WILL CARRY OUT ACTIVITIES FOR OUTREACH FOR STUDENTS AND GENERAL PUBLIC