GLOUCESTER, Mass. (WHDH) -- The family of a little girl who disappeared from a Rockport beach spoke out Monday, saying they believe she was swept out to sea.

Anthony Harrison says he has finally come to terms with the realization that his 2.5-year-old daughter, Caleigh, probably isn't coming back.

“I think about it every day,” Anthony Harrison said.

Caleigh was last seen April 19 on Long Beach in Rockport. Her mother says she briefly left Caleigh and her other 4-year-old daughter, Elizabeth, to go retrieve a ball. When she returned, Caleigh was gone.

Anthony Harrison says he now believes what police have been telling him all along -- that Caleigh was most likely swept out to sea, and not abducted.

Anthony Harrison says he became convinced after the organization, Mission for the Missing, came to the same conclusion as police.

“The probably of her being taken from the beach is very, very slim. There’s still a chance. If it’s a one percent chance, that’s what I’m holding on to. But the reality of it is that it is it looks like that that is what happened,” Anthony Harrison said.

But the family is somewhat split. Caleigh's mother, Allison Harrison, who is estranged from Caleigh's father, says she still thinks Caleigh may have been abducted.

“I’m not ready to accept that fate yet. There was no evidence pointing in either direction. So until a body is produced to me, I’m always going to hold out hope that she is out there somewhere waiting for us to find her,” said Allison Harrison, Caleigh’s mother.

State police continue to say there is no evidence of an abduction, but it remains an open missing child case.