Notice to Mariners No 31 of 2026 (Temp)

Monday 4 May 2026

HARBORS AND NAVIGATION ACT 1993

Notice to Mariners No. 31 of 2026 (Temp)

SOUTH AUSTRALIA – SPENCER GULF - PORT LINCOLN – BILLY LIGHTS POINT – VESSEL EXCLUSION ZONE

Mariners are advised that there will be an exclusion zone to the South-East of Billy Lights Point, Port Lincoln as bounded by the following positions:

Dredge Works

Shore Pt 1 – 34° 44’ 46” S / 135° 53’ 31” E
Shore Pt 2 – 34° 44’ 53” S / 135° 53’ 29” E
MB 07 – 34° 44’ 43” S / 135° 53’ 41” E
MB 08 – 34° 44’ 40” S / 135° 53’ 46” E
MB 09 – 34° 44’ 41” S / 135° 54’ 00” E
MB 10 – 34° 44’ 43” S / 135° 54’ 12” E
MB 11 – 34° 44’ 44” S / 135° 54’ 23” E
MB 12 – 34° 45’ 01” S / 135° 54’ 21” E
MB 13 – 34° 44’ 59” S / 135° 54’ 10” E
MB 14 – 34° 44’ 58” S / 135° 53’ 58” E
MB 15 – 34° 44’ 56” S / 135° 53’ 45” E
MB 16 – 34° 44’ 52” S / 135° 53’ 38” E

The area will be marked with yellow surface buoys with yellow flashing light Fl Y 5s range 1-2 nautical miles.

The Exclusion zone will be in place until February 2027

Mariners are advised to navigate with caution when in the area.

Charts affected:

Paper - AUS134, AUS343, AUS485, AUS776, AUS4060, AUS4709

ENC – AU435135, AU240130, AU160120

NP13 - Australian Pilot vol 1

Gordon Panton

Manager Marine Safety and Compliance

Department for Infrastructure and Transport

04 May 2026

DIT 2017/02277/01