ZCZC JA30 010100 UTC JAN 26 VARNA RADIO NAVWARN 001/26 BLACK SEA. BULGARIA. VARNA LAKE. AREA BOUNDED BY: 43-12.333N 027-52.016E 43-12.402N 027-51.695E 43-12.393N 027-51.567E 43-12.400N 027-51.495E 43-12.324N 027-51.385E 43-12.295N 027-51.322E 43-12.112N 027-52.241E 43-12.153N 027-52.287E 43-12.330N 027-52.185E. NAVIGATION PROHIBITED EXCE_T DREDGING VESSELS. NNNN