To do Boat Hold, start seated with your knees bent and feet on the ground in front of you. Sit up nice and tall then lean back slightly and lift your feet up off the ground.
Engage your abs. Beginners may need to feel like they are rounding their low back slightly as they hold.
Balance here and hold with your feet up off the ground. Beginners will keep their knees bent.
More advanced exercisers can straighten their legs out and up and even reach their hands toward their feet. This will make the move harder. Make sure you only attempt this variation if you feel your abs working and not your low back.