Katherine Choong sends Jungfraumarathon 9a

She is not the one to rest on her laurels: On 16th of October 2019 Katherine Choong cemented her lead among Swiss female climbers with ticking off her second trophy in the 9th grade: Jungfraumarathon 9a. See the enthralling documentary of her project with hard moves and familiar faces like Cédric Lachat, Nina Caprez, Jim Zimmermann and Simon Wandeler.