Kate Walsh, 45, shows her beautiful bikini body on the beach in Miami

After cooling off in the turquoise waters, the redhead headed back to the mainland to get stuck in a sunbathing session.

Kate starred as Dr. Addison Montgomery on Grey's Anatomy before getting his own spin-off show.

She revealed that she would be leaving Private Practice in June after six seasons, and creator Shonda Rhimes in October announced that the sixth season, condensed into 13 episodes, would be the 'last series.