This was my first zipline experience. I was on vacation with my wife, two adult daughters and one son-in-law. We could not have had a better experience. Our guides were Colin and Savannah. They were fantastic! They were always focused on safety, but did so in a way we did not focus on our fears. Their humor had us laughing all afternoon, and they educated us about the ziplining, the Sanctuary and Alaska. The ziplines became progressively more challenging, but as an individual who likes heights as much as much as most people like paying taxes, it was never overwhelming and the views were special. The combination of ziplining and traversing the suspension bridges made the experience unique. We had a wonderful group of nine, with ages from early 20's to 70ish. Everyone had a great experience, and I know they would to a person recommend it.
You need to allow close to three hours. At the top, you can take any excess gear off (backpacks, jackets, etc.) and place in a bin, which will be delivered to you at the end of your zipline adventure. My wife did have a camera around her neck and my son-in-law had a GoPro camera on his helmet. I encourage you to experience ziplining in this beautiful sanctuary.