At 2 a.m. on May 19, 2006, Danenberg reached the top of Mount Everest. Withstanding bad weather during the night that delayed some other climbers in her party, Pa Nuru Sherpa and his brother Mingma Tshiring were the only climbers to witness the event. At the time, Danenberg was suffering from bronchitis, a stuffed nose, frostbite on her cheeks, and a clogged oxygen mask.