Ecotours mean that they are self sustainable and adopts best practices to care for the nature. The instructors gave us a very good introduction of their sound business model and history of the surronding área.
We did the 6 zipline tour in Jun13. The ziplines are very safe, with doublé harness and brakes manually triggered by the instructors, which created the obvious negative - there was no speed in it. We were also quite disappointed that the ziplines didnt offer much view of the remarkables either. A lot of them were obstructed by the trees grown on the slope.
For the price involved you may want to consider alternatives.
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