Sydney : Places to visit in 4 days (Courtesy social Media)

Day 1: 

• Sea world, 
• Madame tussades, 
• Wildlife
• Evening time : Opera house & darling harbour
• Walk through botanical gardens to Mrs Macquarie’s chair and see ongoing Jacaranda bloom
• There'll be vivid light show at Opera house at 7 pm (or my be later since its summer time). Easy to commute using public transport.

Day 2: 

Trip to the Blue Mountains, which will take an hour from Parramatta. Visit three sisters, and scenic world train ride little bit of trekking if you like to and back home

Day 3: 

Beaches and peaches, visit Bondi, Manly beaches. 

Easy to commute using public transport.

Day 4: 

Visit to the city, market Street, shopping, food, going around enjoying the city vibes during Christmas time. Come back and rest.

add Hyde park(Archibald fountain),

St Mary’s cathedral, 

Sydney Tower( visit in evening near sunset time to get day and night view of the city)