In March, we made the challenging hike to Peru's Rainbow Mountain (Vinicunca). It had rained heavily overnight in the valley which meant that it likely snowed in the mountains. It was, therefore, possible that at the end of the hike, which ascends from 4600m to 5200m, we may not see the colors. We crossed our fingers and hiked through the thick early morning fog. It paid off as the hike ended with this view of half colors and half snow. The reddish-brown, turquoise, gold, and yellow colors are due to sediments of iron, copper, and sulfur. As beautiful as the colors are, the reason we see them today is concerning. Although the mountain is very old, it was discovered only five years ago as the ice layers covering it melted due to global warming. Moreover, since its discovery, the number of hikers has increased multifold, eroding the delicate mountainside.