Five days gives Sydney a fair amount of time, balancing the harbour's iconic sights with the beaches and coastal walks that are just as central to the city's identity. Days 1 and 2 cover the harbour and city centre. The Opera House and Harbour Bridge are best experienced together — walk or cycle across the bridge for views back toward the Opera House, or climb the BridgeClimb if you want a more dramatic vantage point and don't mind the cost. The Rocks, Sydney's oldest neighbourhood, sits right at the foot of the bridge and rewards a slow wander on your first afternoon. Take the Manly ferry on day two, partly for the harbour views the crossing itself delivers and partly to explore Manly's beach and northern beaches character, distinct from the city centre. Day 3 is for the coast. The Bondi to Coogee coastal walk links several of Sydney's best beaches via a spectacular clifftop path, with ocean pools, surf breaks, and cafés along the entire route — budget at least half a day, longer if you want to stop and swim at any of the beaches en route rather than just walking past them. Day 4 covers culture and markets, a deliberate change of pace after two harbour-and-coast-heavy days. The Royal Botanic Garden offers green space close to the city centre, and the Art Gallery of New South Wales is worth a few hours if you have any interest in Australian or international art. Finish the day in Surry Hills, exploring its laneways and markets for a more local, less touristy feel. Day 5, if you have it, is best spent on a day trip to the Blue Mountains, about ninety minutes by train from central Sydney. The Three Sisters rock formation and the surrounding hiking trails offer a genuine change of scenery from the city and coast, and the train journey itself is straightforward enough to manage without a car. A few practical notes: get an Opal card for trains, buses, light rail, and ferries — it's by far the easiest and cheapest way to get around the entire city. Sun protection matters even on overcast days, given how intense Australian UV levels genuinely are. And always swim between the flags at surf beaches, since rip currents are a real hazard outside the lifeguard-patrolled areas.