Dear sir, madam, We are planning our trip to Chiang Mai this November and would really like to go ziplining. We are a group of five in total, but unfortunately one of us is affraid of hights. I suppose he will not be joining us on the ziplines, but could you perhaps inform us id there is a possibility that he joins us without going on the zipline its self? And how long soes a tour last? Thank you kindly for your response in advance. Kind regards, Elien Aussems