Are g-strings and thong swimwear legal on Sydney beaches?

In general, the following attire is acceptable on Sydney beaches:

Swimsuits that cover the body from mid-thigh to mid-chest.

Board shorts or shorts.

One-piece swimsuits.

Bikinis.

Speedos.

Tankinis.

Rash guards.

G-strings and thong swimwear are not explicitly banned on Sydney beaches. However, it's important to note that they are considered revealing and may not be appropriate for all situations. If you're planning on wearing a g-string or thong swimsuit, it's best to check with the local council to ensure that it's allowed before you visit the beach.