My eight year old granddaughter loves to go out fishing with me so I decided to add a second seat to my kayak so that I can take her along out on the water for a change instead of just going out to the local pier. The seat is easily installed and secured when needed and just easily removed when going solo. The seat used was a generic boat seat found at your local Walmart.
This video shows how I installed a removable rear seat to my Hobie Pro Angler kayak that does not involve drilling any holes into the kayak.
Florida Fish Hunter 