Half turn (180°): you switch your front foot upon landing. Can be done frontside (FS) or backside (BS), it's the foundation of all rotation work in cable wakeboarding.
Tips to land it
Start with a solid heelside edge and keep your knees bent before the ollie.
Initiate the rotation with your shoulders and gaze, not with an arm pull.
Spot the water early in the turn for a flat landing, board aligned.
Stay centered over the board throughout the movement, without leaning back.