I ' m impressed we managed to stick to the path . It was all worth it though - we got to the top of the mountain at about 6 am and watched the sunrise , which was really spectacular . It was also absolutely flipping freezing and I had n't brought enough layers . That was n't pleasant .

Give answer the following question using evidence from the above passage: Why did n't I bring enough layers with me to climb the mountain ?
I did n't think it would be that cold