Whereby, the use of an earth penetratable anchoring means, having {HEAD ~ a relatively low weight} in comparison to heavier cement blocks, which is capable of withstanding at least 400 lbs. of vertical pull to fixedly mark {TAIL ~ a particular location} underwater 
Whereby , the use of an earth penetratable anchoring means , having { HEAD ~ a relatively low weight } in comparison to heavier cement blocks , which is capable of withstanding at least 400 lbs . of vertical pull to fixedly mark { TAIL ~ a particular location } underwater
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH