The 30-yard bunker shot is one of the hardest shots in golf. The key to achieving the distance, which is the hardest aspect of the shot, is in the angle of attack. This angle is dictated by the shoulders, so use this cane drill to get the visual feedback you need to set the shoulders up correctly.
When you have a low left shoulder, your angle of attack will be steep into the ball, which means you’ll take more sand and not get the distance you require.
Instead, use the cane to feel you have a lower right shoulder in your set-up position. This will create a shallower angle of attack into the ball, meaning you’ll take less sand and achieve the required distance.