John Slonina is a professional nature photographers. His company Slonina Nature Photography leads instructional photo tours and workshops throughout the United States. His photo tours visits several national parks which include Yellowstone, Grand Tetons, Mt Rainier, Olympic, Acadia, Great Smoky Mountains, Mt Rainier, Olympic, Arches, Canyonlands, Everglades, Big Cypress, Katmai and Lake Clark.