On our trip to Maui we booked the skyline eco-adventure experience last, however it was one of the most exciting parts of the trip. The whole event lasts about 1.5-2 hours but when you done you want to go back around for a second run. There are 4 zip lines and one hanging bridge for you to cross. Each zip line is amazing and quite a rush. The last zip line is the best of them all, you cross this 120 ft. canyon and reach a speed of 40 mph. All the equipment is in good condition and the staff is always looking out for you safety. Definitely a must do in Maui.