We had a fantastic day zip lining with Huana Coa. There are nine lines in total, and most of them are comparatively ( to other zip lines I've done ) fast, and exhilarating, and take you through lush tree top canopies. Zip lining is a real thrill in general, and to be be able to do it in the Mexican jungle, even better. Huana Coa is very safe. They are the only company with two lines, for extra security, and they double check your equipment before each zip. I felt I was in very good hands. They also use top if the line gear such as Petzel harnesses and helmets, and their lines are extra heavy gauge. As a climber, I am appreciative of their care and attention to detail. Thanks Huana Coa - we had a great day!