If you go to Discovery Falls, a nice place to combine it with is Percy's Riverside Retreat because is pretty close by.

Not really an attracttion, per se, but a nice place to chill with good food, bar, and countryside view.
They even have a mini version of the bamboo boat rides.
Here's a web page describing it, with pictures, and phone number to call for directions and advance notice to have food prepared.
http://www.jamaicatravelforum.com/pe...erside-retreat