We had a great time. The activity took about 1.5 hours with a group of 6 people. There is not much walking involved only about 2 mins between each line and 15 mins at the end. The guys were extremely friendly and engaging and told us little stories about Iceland and Akureyri in between the zips. While I've done many ziplines before I still have a fear of heights and they made me feel safe. I believe they did a great job explaining what to do if you were a first-timer too, and encouraged us to try different poses while sliding. I'd like to add though not to expect km long lines. Compared to what I'm used to in Germany/Hungary/Austria these were relative short ones, with only one longer line.