In the latest Hudson Valley Word of Mouth segment, Julia Joern meets up in Hudson's Promenade Hill Park with Seth Kamil, founder of Big Onion Walking Tours and the soon-to-be-launched Hudson Valley Rover Tours. Now in its 30th year, Big Onion Walking Tours -- known worldwide for its comprehensive tours exploring the rich diversity of New York City -- has recently expanded to the Hudson Valley. This is the first in a series of ongoing interviews with Kamil, an expert in weaving together the stories of the architecture, history, and culture of our region.