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