Last year we first featured the work of NY and LA-based Lifestyle Pet Photographer Seth Casteel, who created an awesome series of high-speed underwater photos of dogs diving in to fetch their tennis balls. Casteel is back with what might be an even more delightful series, because this time he’s photographed puppies in the middle of exuberant underwater lunges.

His latest book, entitled Underwater Puppies, is due to be released in September 2014. For now you can still order copies of his first book, Underwater Dogs, via Amazon.

Visit Seth Casteel’s Facebook page and Instagram account for many more of his hilarious underwater dog photos, prints of which are available via Zenfolio.

[via Twisted Sifter]