# Sydney Harbour anti-submarine boom net

> World War II naval defence net

**Wikidata**: [Q3071785](https://www.wikidata.org/wiki/Q3071785)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Sydney_Harbour_anti-submarine_boom_net)  
**Source**: https://4ort.xyz/entity/sydney-harbour-anti-submarine-boom-net