Khum Lanna FAQ's 1. You have an open air truck, would an air-conditioned truck be available? The tours are normally organized with a local open air truck which is also part of the “Thai experience”. Our guests actually enjoy this kind of vehicle which the Thai people regularly use. However, we are able to organize an air-conditioned truck on request and at an extra cost. 2. Do you need any warm clothes? In the winter season (November to February) day time is always very warm, but during night time the temperature can get quite low. We recommend taking a light pull over for chilly evenings. Our team can also provide with extra blankets if needed.