Santa's visit to Aquarium

Jerry Cowley, aquatic safety manager at the Silverton Hotel Casino swims to the surface after interacting with guests as an underwater Santa Claus, Sunday, Dec. 9, 2012, at the casino's aquarium in Las Vegas.(AP Photo)

A stingray glides overhead as Jerry Cowley, aquatic safety manager at the Silverton Hotel Casino interacts with guests as an underwater Santa Claus, Sunday, Dec. 9, 2012, at the casino's aquarium in Las Vegas.(AP Photo)

A tropical fish examines Jerry Cowley, aquatic safety manager at the Silverton Hotel Casino as he interacts with children as an underwater Santa Claus, Sunday, Dec. 9, 2012, at the casino's aquarium in Las Vegas.(AP Photo)

Jerry Cowley, aquatic safety manager at the Silverton Hotel Casino interacts with children as an underwater Santa Claus, Sunday, Dec. 9, 2012, at the casino's aquarium in Las Vegas.(AP Photo)

A stingray glides up the side of the aquarium wall as Heather Carrasco poses for photos dressed as Santa's helper at the Silverton Hotel Casino, Sunday, Dec. 9, 2012, in Las Vegas. (AP Photo)

Jerry Cowley, aquatic safety manager at the Silverton Hotel Casino interacts with children as an underwater Santa Claus, Sunday, Dec. 9, 2012, at the casino's aquarium in Las Vegas.(AP Photo)

Jerry Cowley, aquatic safety manager at the Silverton Hotel Casino interacts with children as an underwater Santa Claus, Sunday, Dec. 9, 2012, at the casino's aquarium in Las Vegas.(AP Photo)