Lake Rawlings - A Clear Quarry??

After diving in Millbrook Quarry for so long, I was pleasantly surprised - one could say shocked - at the clarity of the water in Lake Rawlings.  It used to be a limestone quarry I think, but now its a scuba park.  Its not very deep (65ft) but there is ALL KINDS of stuff to see and do down there!  Living in Northern VA, its a bit of a haul to get there, but it certainly is worth it. Picks can be seen here, or click here to see some video!