Another thing she's mastered: keeping daughters Honor and Haven entertained on the sand. "In the morning, we splash around, chase the waves, and make sand castles," she says. "We always have sand toys." Alba savors time for herself, too, often with a book and a stash of healthy snacks. "It's a great time to disconnect from the hustle and bustle of daily life."
Buy it: Snapper Rock Girls Ruffle Bikini Set in Paisley, $65, snapperrock.com.