Jessica Biel hit the beach in a skimpy bikini in Hawaii this afternoon. She took a dip in the ocean with her snorkeling gear, played with an adorable baby in the water, and showed off her hard-earned fit physique among friends. Her boyfriend, Justin Timberlake, didn't join her for the trip since he's busy filming Now with Amanda Seyfried back in LA. Jessica was up early at home this morning to get in one last workout on a hike with her dog, Tina, before heading to Honolulu. She may be trading her hot two-piece for something sparkly soon, when she gets started filming New Year's Eve with Zac Efron, Sienna Miller, and Sarah Jessica Parker. The ensemble cast is expected to begin working on the holiday-themed sequel to Valentine's Day soon.