I went over Tuesday night to look, but nothings visible from the shore beside the peir in that area, so its under some amount of water. There are several spots in that area where the yellow sand is showing thru clearings in the muck on the bottom, and that could be it, but we'll most likely have to wait till swiming weather to get final answer.
The good news is its only about 10' of water, so its at least a small space ship.