This is a first rate company. My family and I went on the waterfall hike and had a blast. It is an absolutely gorgeous hike and because it is private property--we felt like our group were the only people on Earth. Also, everything is very organized and the guide was incredible. We also enjoyed some fun stops on the way to the hike and on the way back (including a wonderful lunch looking out over breathtaking cliffs, ocean, and a black sand shoreline).
One caveat: these hikes are active --be prepared to break a sweat, to climb over uneven ground, rocks, mud, etc. Even getting to the hike requires a very rough ride (off road) in an army vehicle.
I say this because we had two elderly women on our hike who were miserable. They looked uncomfortable during the ride to the trailhead. When we arrived at the trailhead they both wisely decided to stay in the vehicle and wait for the rest of the group (which meant they had to sit in the vehicle by themselves for almost two hours). The rest of the group had no problem with the hike and we all had a blast. But we felt bad for the ladies. They said they were told by their hotel concierge that it was easy and that 80 year olds had done it. This is totally wrong. These are not the most difficult hikes in the world, but they are real hikes--if you have any injuries or physical ailments and don't want to break a sweat or get dirty --then book another type of tour.
This company is great, but they are very expensive. If you aren't looking for a physically active day/evening--there are many more comfortable ways to see the island (including luxury van tours and helicopter tours) in roughly the same price range.
If you are looking for an active day--you can't beat these guys.
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