Rock climbing

$$ Rock climbing is a secret skill in The Sims 4: Fitness Stuff and a regular skill in The Sims 4: Snowy Escape. In Fitness Stuff it goes up to level 5 and Sims build it using the climbing wall. Using the climbing wall also builds the Snowy Escape version of the skill, but Sims will more typically gain it while climbing Mt. Komorebi's mountain. It is available to Sims aged teen and older.