I must disagree with Laughing Bear on DCHS being not appropriate for children. It is true, however, that any public environment, clothing optional or otherwise, carries the risk and danger of perverts, and parents should always be diligent in protecting their children.
I have also heard Wizard saying that he does not trust a certain hotsprings regular around his children when they are out of his sight. Others have heard him say this, too.
I do find it odd that, with that level of mistrust, he is ok with this person being in close contact, including physical contact, while he is near. Why allow your children to trust someone you do not trust? Perhaps he does not understand that the psychological damage that occurs in child molestation is centered in the violation of trust. That violation can occur without any actual molestation, and without any laws being broken.
Wizard, please do not allow your loyalty to Katrina Island and DCHS, Inc. prevent you from protecting your children. They are not DCHS, Inc. children, but yours.