We all were reluctant to rush back down to rainy Khumbu valley after experiencing a stunning sunrise behind the Everest from a hill-top in freezing cold. So, we took more stops than usual on our way back and were gifted by this rare optical phenomena around Nuptse summit- a Circumhorizontal arc (combined with a 22° hallo around the Sun). It took around 5 minutes for it to properly illuminate, but made the sense of spectacular Himalayas even more spectacular!