Yes, you can add or minimize days during your trek. Please note that no refunds will be made if you request to reduce the number of days after the trek begins. But, if you require while booking or a month before the trek starts, we might consider it as per circumstances, and suitable refunds shall be made. Likewise, if you request to add days after the trek begins, an extra charge might be charged because making a reservation at the lodges at that moment will cost more and is difficult to manage. However, if you request us a month before the trek, it can be operated at reasonable costs.