These HD Pictures Of Under Water Puppies Will Blow Your Mind With Cuteness...OMG

Seth Casteel is a professional photographer who's arguably most well known for his favorite subject: puppies...underwater.

The high-res photos are brilliant in themselves, but also capture every tiny detail of cutess in the playful expressions, as these beaming puppies hit the water for the first time.

Below are some of the 80+ pups featured in his new photo-book, available now at Barne's & Noble.