hey my name is abby and i was diving with donna when we saw the stumps. My husband and i found them about a year ago when we were spearfishing on the pencil rig, matt and i noticed that most of the larger fish we staying about 10-15 yards away from the rig so we made a large circle around it and came across a huge stomp bigger than the ones that we way last weekend, just from memory i would say that it was about 2 feet in diameter. when we were diving this weekend we found many more stomps. i wonder if it was an attemp of someone trying to make a reef or if they are prehistoric? ill see if i can bounce it this weekend and take a peice of it to be analized.