The best time to book Spiti Valley tour packages for scenic views is during the summer months of March to June. This period is ideal because the weather is pleasant and cool, making it comfortable for outdoor activities such as trekking, camping, hiking, and mountain biking. Additionally, the landscape is green and bursting with life, which enhances the overall visual appeal of the region. During this time, you can also witness the elusive wildlife and striking frozen waterfalls and lakes.