We walked into DZT without planning months ahead of time for this activity. They fit us in no problem. They were friendly and fun. We showed up the next day for our tour and were welcomed and had great conversation with the front staff while we waited to leave. Caroline and Jeremy were awesome! When we got to zip lining, yes we had a great group, but Jacob and Richard were hands down, the best guides we could ask for! They had us laughing the whole time, totally helping all in the group let go of any fears we had so we could truly appreciate the experience of zip lining! Denali ZipLine is a fantastic, friendly, tour who made safety a priority but allowed us to experience nature in a way few get the opportunity to do...oh, and they documented it all on film for us along the way! Hands down, fantastic experience, would do it again! Thank you to Jacob and Richard for one heck of a ride! You were awesome! Trina and Matt, Chicago, IL