Indian climber Satyarup Siddhanta became the youngest mountaineer in the world to complete both the Seven Summits and the Seven Volcanic Summits at the age of 35 years 262 days when he scaled Mt. Sidley (4285m) in Antarctica on 16th January, 2019, surpassing Australian mountaineer Daniel Bull who had previously made this record at the age of 36 years 157 days. On December 9th, 2018 after scaling Ojos del Salado, Canadian climber Theodore Fairhurst became the oldest in the world to complete both the Seven Summits and Volcanic Seven Summits climbing challenge at 71 years and 231 days.