We did this tour with Chris Jamaica Tours. Chris is an amazing tour guide, with tons of local knowledge. The Blue Hole is really off the beaten path and absolutely stunning. Be sure to bring water shoes to navigate the uneven surfaces in and along the river. That being said there are guides there to help you every step of the way.Dunn's River Falls is much more commercialized and crowded. Although we enjoyed our visit there, we found the Blue Hole to be the best part of the day.We definitely recommend the tour... two popular attractions in just over half a day!