Did you know that every Saturday and Sunday through December 20, there's a scuba-diving Santa Claus at the Seattle Aquarium? It's true! Check out these exclusive "backstage" photos…

Heyyyy, it's SANTA! Kelly O

This is Capt' Carl getting help with his boots. Kelly O

They have to add weights to Santa, to help him sink to the bottom of the tank. Kelly O

Scuba Diving Santa needs… So. Much. Gear. Kelly O

Don't forget the oxygen! Kelly O

When's the last time you saw Santa putting on flippers?! Kelly O

Ho Ho Ho, and ready to go. Kelly O

That water is cold, and full of fish! Kelly O

SWIM, SANTA, SWIM! Kelly O
![Oh, look who suddenly floated down the chimney [of the 120,000-gallon viewing tank] Oh, look who suddenly floated down the chimney [of the 120,000-gallon viewing tank]](https://www.thestranger.com/images/blogimages/2015/12/11/1449878518-s-10.jpg)
Oh, look who suddenly "floated" down the chimney [of a 120,000-gallon viewing tank!] Kelly O

Now it's time for holiday stories… about fish! Kelly O

I'll take Underwater Diving Santa, before boring ole Department Store Santa, ANY DAY. Thanks Capt' Carl and the Seattle Aquarium. Kelly O