I too believe that Natalee's remains were placed were no one could find them. Since Natalee disappeared two different theories have crossed my mind as to where her remains were placed, IMO, by JVS father. The first place that crossed my mind was somewhere on the VDS property - maybe under the foundation, or under the foundation to the garage. But, should Aruban LE actually get agressive and get a warrant the remains could,and I emphasize could, be found.
The second possibility is one that is even more macabre. Paulus knew many people, and it occured to me that he could have enlisted the help of a funeral director (for a sum of money) to place the body with another body being buried. During the 21 years while I lived in Orlando, Florida a funeral director in Deland (I think it was Deland,IIRC) killed his wife. He then placed her body in a casket underneath the body of a woman whose funeral was held in his funeral home. Caskets are constructed with the small mattress in it on a crank that is elevated for viewing, and is then lowered for closing of the casket. There is room under the mattress to hide a body, and this guy in Florida did it. He cracked and told police what he did after LE, and his wife's family, put a lot of pressure on him. So, that case stuck in my mind, and seemed like a near-perfect way to get rid of a dead body where no one would find it. I say near-perfect because unless the person who hides the body in this manner is himself a funeral director he would then need the help of one. That person could later reveal what he did, but in this case I doubt it. That scenario plays over and over in my mind to the point that I wonder how many funerals there were 1-3 days after Natalee went missing. I believe Paulus would be that shrewd to think along those lines. If that is what he did the chances of ever recovering Natalee's remains are very slim, IMHO.