ZCZC HA43 220936 UTC OCT 26 IRAKLEIO RADIO NAVWARN 1346/26 NORTH CRETAN SEA KRITI ISLAND SOUDA BAY NOISE MEASUREMENTS FROM 261700 UTC UNTIL 270400 UTC OCT 26 AND FROM 271700 UTC UNTIL 280400 UTC OCT 26 AND FROM 281700 UTC UNTIL 290400 UTC OCT 26 AND FROM 291700 UTC UNTIL 300400 UTC OCT 26 IN AREA WITHIN SOUDA BAY BOUNDED BY THE MERIDIANS: 024-04.40E AND 024-08.00E NAVIGATION IS PROHIBITED IN THE ABOVE AREA CANCEL THIS MSG 300500 UTC OCT 26 NNNN