Notice to Mariners No 59 of 2025 (Temporary)

Tuesday 2 September 2025

HARBORS AND NAVIGATION ACT 1993

Notice to Mariners No. 59 of 2025 (Temporary)

SOUTH AUSTRALIA – SPENCER GULF – PORT BONYTHON – STONY POINT – EXCLUSION ZONE ESTABLISHED

Mariners are advised that an Exclusion zone has been established in Port Bonython harbor.

This area commences at the shore and extends approximately 150m from the shore and is 350m wide.

Mariners, swimmers, bathers and all other aquatic users are prohibited from entering the exclusion zone.

This area is bounded by the following coordinates:

  • 32°59'48.0" S 137°45'07.4” E
  • 32°59'50.1” S 137°45'04.6” E
  • 32°59'51,2” S 137°44'58.9" E
  • 32°59'51.8” S 137°44'53.7” E
  • 32°59'48.9” S 137°44'51.5" E

Mariners are advised to navigate with caution in this area.

Charts affected:        AUS136, AUS485, AUS 778, AUS4060, AUS4709

ENC AU433137, AU434137, AU434138, AU5PBY01, AU5PPI01, AU5WYA01

GORDON PANTON

Manager Marine Safety and Compliance

Department for Infrastructure and Transport

02 September 2025

DIT 2017/02277/01

www.marinesafety@sa.gov.au