These techniques tone and tighten two places you’ll want to flaunt at the beach. In addition, your core will strengthen, providing you improved balance—perfect for all that surfing and SUPing.

1. Inverted Reach

Face up with your legs bent, feet hip-width apart, and your right hand behind your head. Keep your weight in your left hand and your elbow on the floor at chest height. Extend the right leg by squeezing the knees together. Raise your left shoulder and reach towards your right knee while maintaining your chest wide (as shown). 1 rep back to the beginning. Do 15 repetitions. Change sides and repeat.

2.Reach & Cross

Beggin’ on your hands and knees, with your weight in your right hand. As you raise your right elbow to your knee, pull your left knee to your chest. For 1 rep, swing the leg back and up while reaching the right hand toward the left foot (as illustrated). Do 15 repetitions. Change sides and repeat.

3. Arm Lift & Leg Swing

Start on a high plank with your hands beneath your shoulders and your weight in your right hand. Raise the weight to your chest, elbow pointing out. Lower your weight to the ground. Swing your right leg out to the side, toes touching the floor (as shown). 1 rep back to the beginning. Do 15 repetitions. Change sides and repeat.

4. Frog Crunch

Face up on the floor, knees together and 45 degrees off the ground, arms stretched above, weight in both hands. Bend your knees and spread your legs, keeping your feet together while you elevate your upper body and extend your arms forward until your weight is evenly distributed between your knees (as shown). 1 rep back to the beginning. Do 30 repetitions.

Source: self