Does anyone know of any budget friendly tours or other fun things fun things to do while in negril?

even though this is my 3rd trip, i've never done a single tour and i want this trip to be different, mostly because i promised my travel buddy that we would do more than sit on the beach for 7 days (which is something i'm fine with)..

also any restaurant ideas? he came up with the idea of not eating at the same restaurant more than once.