Seth Casteel's underwater puppies are the perfect portrait subjects: Full of personality, snuggle-worthy, and ready to play ball.
In his latest photo series, they learn to swim, wide-eyed, nose to the camera, while we watch at close range.
“My series of underwater photos,' says Seth Casteel, 'show a side of dogs we never get to see. Through the course of shooting I have worked under water with more than 250 dogs.
Most of the dogs featured in this book hadn’t been underwater until they met me, and some had never even been swimming!"