The average trip length on Denali was 17 days; independent teams averaged a day less (16 days), while guided teams averaged a day more (18 days). The average length of a Muldrow Glacier climb was 27 days. The average age of male climbers was 38 years old. Women were generally younger, with an average age of 35 years old. The youngest climber to attempt Denali this year was 17 years old, the oldest was 70. Women climbers.