Mischa Barton: Bikini Babe in Miami!

A bikini-clad Mischa Barton grins at photographers on Tuesday (December 27) in Miami, Fla.

The 25-year-old actress, who was joined by a guy friend, soaked up the sun after the holidays.

PHOTOS: Check out the latest pics of celebrities in bikinis

Mischa recently finished work on The Misadventures of Ben Banks.

Here’s the synopsis: “Ben Banks is the Forrest Gump of the slacker generation. He’s a young man without much drive or ambition, who stumbles into a series of strange and fascinating (mis)adventures. When he falls in love with a beautiful girl (Barton) with a mysterious past, he begins a journey that makes him discover being a grown-up isn’t so bad after all.”