Continuing their St. Barts vacation, Naomi Watts and Liev Schreiber enjoyed two days at the beach with their children on Sunday and Monday (December 30-31).

The 44-year-old blonde beauty looked toned in her various swimwear as she and her handsome hunk played with Alexander and Samuel on shore.

Later, Liev took his boys in to the water to show them how to don a scuba mask and work a paddle board while Naomi watched from a beach chair.

Being sure to get in some alone time, the couple, who have been together since 2005, enjoyed a stroll along the shoreline hand in hand.