Award-winning photographer Seth Casteel got his start with underwater photography when his own dog jumped into the water and piqued Casteel’s curiosity.

‘As I watched him dive in over and over again chasing his favorite mini tennis ball, I thought, “What does he look like under there?” I left, bought a little point-and-shoot underwater camera, zipped back, and jumped in.’

Since then, he has made a name for himself with a whole series of Underwater Dogs. He then replicated the project with human babies, which was, of course, amazing. And now he’s back to canines with his latest book Underwater Puppies.

For the project he worked with 250 different dogs, most of whom had never been swimming before this photo shoot…

Don’t they look just like little angels?

No wonder Casteel has won many awards based on his project – who could resist to such cuteness?

Okay, we have to admit that they also look hilarious.

And ridiculously playful!