The three of us booked this tour last Sunday morning and were the only kayakers along with our guide Joshua. Joshua was a very informative guide, explaining the plants, trees and animals as we drifted by. He came in on his day off to lead our tour group!
This is a very leisurely paddle, as you start out doing with the light current downstream. The scenery is very pretty, and we did see a few animals along the way. While we didn't see any alligators, we heard that other did.
I'd say that kayakers of all skill levels can do this trip. The return trip is a little more work going upstream, but nothing too strenuous.