SECURITE 271500 UTC AUG 2023 NAVAREA IX (.) 314/23 (.) RED SEA (.) SAUDI ARABIA (.) RA'S KURKUMA (.) UMMAHAT ALSHAYKH ISLAND (.) CHARTS BA 159 2. SEA PLANE LANDING AND OPERATIONAL AREA ESTABLISHED AT UMMAHAT ALSHAYKH ISLAND IN FOLLOWING POSITIONS: 25 32.31N 036 43.59E 25 34.88N 036 44.71E 25 33.40N 036 48.15E 25 31.06N 036 46.43E 3. MARINERS CAUTIONED