Dixie D'Amelio's living her best life down under -- and she's making sure everyone knows it ... dropping some sizzling bikini-clad bae-cation pics on her IG.

Looks like Dixie’s soaking up every moment ... flaunting her killer bod in a series of barely-there bikinis while hitting up the stunning beaches -- and squeezing in some other adventures too. Wanna see more? Check out the full gallery!

Dixie was serving looks ... but she didn’t mind sharing the spotlight -- snapping some bikini-clad pics with fellow stunner and influencer babe Eden Rosen.

Dixie was also mixing and mingling with Aussie beauty Emma Pillemer ... sipping drinks and reveling in those sizzling weather vibes.

Of course, Dixie's bangin' bikini bod is nothing new ... she's been showing off that toned figure whether she's chillin' in the States or turning heads halfway across the world.