A drop-shot rig is a hook tied directly to the line (from four inches to four-foot above the sinker) with a sinker also tied to the line, below the hook.
To create a Drop-Shot Rig:
Pass a look of monofilament line through the eye of the hook. The tail of the line (the part that is not attached to the reel) is where you will put your weight.
Tie a Palomar knot to secure the hook and leave the tag end (the tail of the line that is not attached to the reel) about four or five feet long. Now take the tag end and go back through the hook eye from the point side toward the back. When you hang the weight, the hook will be at a 90-degree angle to the line with the hook point up.
Last is the weight and how far up the line the hook should be. Here’s where you’ll have to decide based on how high above the hump or sunken island the fish are holding. You’ll just have to experiment to see what the fish want, but 18″ to 24″ is a good place to start.