Royal Botanic Gardens
On the water’s edge, in the heart of the city, the Royal Botanic Garden Sydney is a verdant oasis spanning 30 hectares (75 acres). It’s framed by the iconic harbour, offering views of the Opera House and Harbour Bridge, as well as the Domain. The Botanic Garden is home to nearly 28,000 plants and more than 3,370 trees from more than 75 countries. It also hosts the Cadi Jam Ora Garden and The Calyx horticultural display space. It’s best explored on foot, but you could also hop on the Choo Choo Express train for free, which runs for 25 minutes every half an hour. Free guided walking tours are also available daily, led by volunteer guides.