The Gossip Girl star turned 24 last week (25Aug11), but was unable to spend her special day with DiCaprio as he is currently filming The Great Gatsby in Sydney.

Lively jetted into the country over the weekend, and on Saturday (27Aug11) the couple enjoyed a romantic date at Aria restaurant, which overlooks Sydney Harbour, according to the city's Daily Telegraph newspaper.

A source tells the publication, ""She looked gorgeous and they looked very much like a couple. They seemed to be having a really nice time and were definitely enjoying the view.""