COASTAL WARNING 08/19 AFRICA - WEST COAST CALABAR TO BATA INCLUDING ISLA DE BIOKO BA 1387 (INT 2810) RIG MOVEMENT 1. TRIDENT XIV RIG TO MOVE FROM CURRENT LOCATION ETIM 'B' PLATFORM AT 4-9.385N 8-2.314E, TO NEW LOCATION ETIM 'C' PLATFORM AT 4-5.988N 8-2.594E ON 19 APR 19. 2. MARINERS ARE ADVISED TO NAVIGATE WITH CAUTION.