ZCZC HA09 311210 UTC DEC 25 IRAKLEIO RADIO NAVWARN 1356/25 SARONIKOS GULF ACTIVATION OF 'PLATEIA' FIRING PRACTICE AREA I) FROM 01 JAN 26 TO 31 DEC 26 DAILY FROM 0500 UTC TO 1300 UTC II) EXCEPT SATURDAYS, SUNDAYS AND NATIONAL HOLIDAYS. SHIPS FIRING EXERCISES IN AREA BOUNDED BY: A. 37-47.00N 023-17.00E B. 37-52.00N 023-22.00E C. 37-50.00N 023-26.00E D. 37-44.00N 023-22.00E CAUTION ADVISED 2. CANCEL THIS MSG 311400 UTC DEC 26 NNNN