Time Out says
This cool cave with stunning ocean views can be found near Jervis Bay
Nestled along the sea-facing edge of Booderee National Park, three-hours by road south of Sydney, you’ll find this small yet perfectly formed grotto tucked away at the western end of the beachfront, just a few hundred metres from the nearby campground. And it’s not just the cave that makes a weekend with your tent a good call here. Cave Beach is popular for its sapphire waters and its excellent snorkeling conditions. It's also a stone's throw from Jervis Bay, so this is definitely one to add to your summer getaways list.