Anchoring with one anchor 2

After anchoring, if you find that you are dragging the anchor try to let out more cable.
If that doesn’t work, heave up the anchor and try to anchor somewhere else. When you want to depart the anchorage, heave up the anchor while you are pulling on the line or powering your boat until the cable hangs vertically at the bow.
Then secure the cable as the boat moves slowly ahead and past the vertical line position. That will help to use the weight of the boat to free the anchor from the sea bed. As soon as the anchor is clear, bring it up to the water line and make sure it is free of other cables or lines before you speed up the boat.
Never drag the anchor behind the boat.