What upper mountain centre is adjacent to the town that boasts itself as the location of  Everglades Gardens property?
Everglades Gardens: The Everglades Gardens are a historic property in Leura, New South Wales, owned by the National Trust of Australia. Leura, New South Wales:  Leura is situated adjacent to Katoomba, the largest centre in the upper mountains, and the two towns merge along Leura's western edge.
Katoomba