After reading the reviews of our ziplining options on the Big Island, as well as the details of the lines themselves, we opted for Skyline. We were not disappointed. We scheduled a 10 am tour for Saturday and there were 6 other people in our group for a total of 8. Being an early tour and a smaller group, we zipped through the lines in about 2 hours, which was nice. Our guides were Jake and Chris La and they were super friendly, funny, and reassuring (I am a scaredy cat). They took the time to explain everything and answer all of our questions. I felt they were also very safe and cautious, which was important to me since I was a bit apprehensive about the whole thing to begin with. My husband loves ziplining, and I really wanted to try it. I had a lot of fun, but the last few lines in this tour aren't for the faint of heart. The last one is truly amazing--it's over 3300 feet long and 450 in the air. The view of the falls is breathtaking. Plus, we were done early enough for us to eat at Lucy's in Hilo and then we went through Volcanoes National Park, so it's really convenient to other "must see/must dos" on the Big Island. Jake and Chris La were also really helpful with recommending sites to see and routes to take after the tour was over. We had a lot of fun and highly recommend using Skyline if you want to zipline. All around a great experience!