Tone It Up With This Ab-Tastic Beach Workout

Trainers Karena and Katrina know a thing or two when it comes to feeling your best at the beach. That's why we're huge fans of their Tone It Up Bikini Series, an eight-week challenge full of healthy recipes, workouts, and motivational support. To get a glimpse of what the challenge is like, the ladies behind Tone It Up created an exclusive workout for POPSUGAR readers. The total-body workout focuses on strengthening every muscle in your body, with a little extra attention spent on the abs!