The everglades boat rides were the best. Although we went in a dry season and weren't able to get around most of the Everglades, the ride we had was so much fun. Fun for the whole family, but maybe not the real little ones, I can't remember if there was an age or height requirement for the ride.
The national park conducts naturalist-narrated tours through the maze of Ten Thousand Islands and its teeming bird, alligator, and aquatic life. The facility also rents canoes. In season, rangers lead guided canoe tours.