Some of our favorite celebrity families opted to strut their stuff on the beaches over the holiday season. Let’s take a look at Naomi Watts and Liev Schreiber‘s Australian getaway, to Julianne Moore‘s Mexican adventures, to Richie Sambora and Ava’s Christmas celebrations in Hawaii. Read below and look through our pictures of celebrity families enjoying holiday hotspots. Jessica Alba & family: Sin City star Jessica Alba and husband Cash Warren left LAX and arrived in Los Cabos, Mexico with their two daughters – Haven, 2, and Honor, 5 – on December 27. Then on January 7, the famous family were spotted back home in L.A. Naomi Watts, Liev Schreiber &…