The best type of anchor line is three strand twisted nylon in most anchoring circumstances. Three strand line can absorb shock and the constant tugging associated with anchoring much better than braided line or chain alone. The chain may also be used specially in anchorages that are main rock or coral which may cut a nylon line. A length of chain should be used among the anchor and a longer length of line. The chain will add weight to set your anchor without creation it too heavy to lift manually while serving to exert a horizontal pull on the anchor to set it.
