Free camping in Sydney is quite limited due to the urban nature of the city. However, there are a few free camping options within a few hours' drive from Sydney. Some of the popular free camping locations near Sydney include: 1. Ganguddy Campground in Wollemi National Park (approximately 3 hours from Sydney) 2. Bents Basin Campground in Bents Basin State Conservation Area (approximately 1.5 hours from Sydney) 3. Newnes Campground in Wollemi National Park (approximately 3 hours from Sydney) Please note that while these campgrounds are free, you may still need to reserve a spot in advance, and availability can be limited during peak seasons. Always check with the respective park authorities for the latest information and any restrictions or requirements.