Sydney

Three to four days is ideal for first-time visitors to experience the Opera House, Harbour Bridge, beaches, and neighborhoods; extend to five to seven days if visiting the Blue Mountains or Central Coast.

Yes, Sydney is Australia's most expensive city for accommodation and dining, but free attractions like beaches, parks, and walking tours help offset costs.

Spring (September-November) and autumn (March-May) offer ideal weather with mild temperatures and fewer crowds; summer is warm but crowded, while winter is mild but can be rainy.

No, public transport is efficient and extensive; ferries, trains, and buses connect all major areas, making a rental car unnecessary for city exploration.