Buster & Liz Lemon

A few years ago, award-winning animal photographer Seth Casteel became an overnight sensation when his photos of dogs underwater went viral. What followed was a book deal that resulted in the New York Times best-seller Underwater Dogs.

Casteel’s new book, out Sept. 16, is possibly the only thing cuter thanUnderwater Dogs: Underwater Puppies.

Casteel on the logistics of photographing puppies underwater

I’m wearing a dog costume so that the dogs can feel like I’m one of the pack. … Just kidding. … I usually just wear a wet suit just in case. You know, if you spend 12 hours in a pool with a bunch of dogs, inevitably you’re going to get scratched up a little bit. So I do wear a wet suit. But I just hold my breath — that’s about it. I’m underwater sometimes just a few seconds, sometimes 30 seconds, 60 seconds. But I have my wet suit on. I bring the toys. I bring the fun. And we just have a blast.

Ridiculously Cute Underwater Puppies (You’re Welcome)