Bronte beach is a quite popular Sydney beach. There you have chances to find a parking spot where you can sleep for the night. Bronte beach is awesome to spent the day and have BBQs – there so many BBQ facilities. If you don’t like the sand you can even sunbath at the lawn. You also find showers and toilets – be prepared that they will close at night.
It is not recommended to sleep right by the beach, instead in one of the many residential streets behind the beach.