After a week of day hikes and being limited to the efficient, but not extensive, bus service in the park I shelled out a very reasonable sum of money (about $80 US) for private tour. Hosteria Las Torres doesn't specifically offer private tours; but I waited to book my tour till the night before my last day. That way I was able to determine that no one else had signed up and I would be the only passenger the next day.
After we exhausted my must-see list we wrapped up our day at this less-visited but gorgeous viewpoint. My guide Kris saved this spot as a "finale" to the day and I don't think I could've picked a better spot. It's an easy spot to reach by car (just along the road between Laguna Armaga and Laguna Azul) but most hikers certainly wouldn't be passing by this cascade due to it's distance from highly-traveled trails.