Just returned from 10-day first visit to Costa Rica, and the Hotel Vista Golfo Adventure Park was at least tied for first-place among all of the many things that we did.
First and foremost the ziplining was absolutely fantastic, I don't know how it could have been better. The course was long and beautiful, and followed a gorgeous mountain stream with many waterfalls. So much better than just zipping over greenery, I think. The guides were fun, professional, and helpful. We stopped mid-zip at a beautiful waterfall/pool for a refreshing swim break.
The hotel was very unique and beautiful and clean. The staff very helpful. The food took us by surprise---it was excellent. We weren't sure it would be at such an out-of -the way place.
The views of the Pacific from the lofty restaurant/bar/lobby perch were spectacular.
My only warning is that the location is very out-of-the way. We had a driver, which was very helpful. I'm sure you could drive there yourself, but try to do so in the daytime with very clear instructions (there are some road signs, but I'm not sure that is sufficient). P.S. Of course the obscure location is a huge POSITIVE once you get there!
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.