The 48-year-old actress and her 12-year-old son were joined by husband and dad Harrison Ford.
Earlier in the day, Harrison was spotted doing some solo shopping in town.
Rumors have been circulating that Harrison will be reprising his famous Star Wars role Hans Solo in the upcoming installment in the franchise Star Wars: Episode VII.
via Calista Flockhart: Bikini Beach Day with Harrison Ford & Liam! | Bikini, Calista Flockhart, Celebrity Babies, Harrison Ford, Liam Flockhart : Just Jared.