The following link information is also available in the support section of our website, Product Support for Kayaks then Warranty or Product Support index. http://www.hobiecat.com/articles/boat-s ... cation,15/
The above link includes all of the following text plus images of the serial number location.
Serial number location on Hobie Kayaks
Serial numbers on Hobie Kayaks are located on the transom or rear of the hull. The number is hand-engraved using a vibration tool. The number is on the underside of the rear of the boat, on the right side. Newer boats have a rectangular, raised, ridge around the serial number to make it easier to find. You can rub a small amount of graphite or soil into the serial number engraving to make it easier to read. Serial numbers use the following format: (example CCMB2345H989)