The Neptune Memorial Reef, which opened last fall, is seen by its creators as a perfect final resting spot for those who loved the sea. They hope that one day the reef will cover 16 acres and have room for 125,000 remains.

The Neptune Memorial Reef is located in open waters 3 1/4 miles off the coast of Key Biscayne, which means any certified diver can visit. The artificial reef's first phase allows for about 850 remains.

The structures are 90 percent cement. Some of the sculptural elements are in bronze and steel. It is the same pH balance as the sea, he said.

The cost of a placement starts at $995 and can go to $6,495, for those who want to be placed inside the base of a lion statue for all eternity.