120 Days" is a book by angler and author Bill Hamblin detailing his quest to catch a giant muskie on Georgian Bay, similar to Bill Garner's "Time On The Water". Written in a daily journal format, the book chronicles Hamblin's experiences over 120 days in 2015, covering his catches, losses, thoughts, and doubts. After 120 days, Hamblin and his partners caught 26 muskies, with most over 40 inches and four over 50 inches, including a 55.25-inch monster. The book also offers insights and tips, such as the effectiveness of overhead casts over sidearm casts and the importance of catch-and-release for a healthy muskie population.